Dr. Sudip Shrestha

Breast pain can be worrying, particularly when your first thought is breast cancer. The reassuring fact is that breast pain by itself is usually not a sign of breast cancer. Hormonal changes, pregnancy, breastfeeding, benign breast conditions, infection, medications, injury and pain arising from the chest wall are all possible causes. However, pain should not automatically be ignored. Pain that persists, repeatedly occurs in one specific area, or appears together with a new lump, nipple change, discharge, skin changes or swelling deserves medical assessment. The American Cancer Society notes that breast pain is common and that most breast pain is not caused by cancer. When cancer does cause pain, it is more likely to be persistent and occur with other breast or nipple abnormalities. Read the American Cancer Society guidance on breast pain Is breast pain usually a sign of breast cancer? Usually, no. Breast cancer often causes no pain, particularly in its earlier stages. The National Cancer Institute states that breast cancer does not usually cause breast pain and that hormonal changes, cysts and some medicines are among the non-cancer causes of soreness or pain. Persistent breast pain should nevertheless be assessed. This distinction matters because two mistakes are common. The first is assuming that breast pain means cancer. The second is assuming that because breast cancer is often painless, any painful breast change must be harmless. Neither assumption is reliable. Pain is only one part of the clinical picture. Doctors also consider where the pain occurs, how long it lasts, whether it follows the menstrual cycle, whether it affects one or both breasts, and whether other changes are present. What is breast pain? Breast pain is also known medically as mastalgia. It can affect one breast or both breasts and may involve one small area or a larger part of the breast. People describe breast pain in many ways, including: Sometimes discomfort that feels as though it originates in the breast actually comes from nearby muscles, ribs, joints or nerves. NCI describes breast pain as discomfort that may affect the breast, underarm region, or surrounding structures and notes that hormonal changes are among its common causes. What are common causes of breast pain that are not cancer? Hormonal and menstrual-cycle changes One of the most common patterns is cyclical breast pain. This usually develops in relation to the menstrual cycle. The breasts may feel heavy, swollen, tender or generally uncomfortable before a period and improve once menstruation begins or shortly afterward. Cyclical pain often affects both breasts rather than one very specific point. The NHS describes period-related breast pain as commonly beginning before menstruation, often producing a dull, heavy or aching sensation in both breasts. Pregnancy and breastfeeding Hormonal changes during pregnancy can make breast tissue more sensitive. During breastfeeding, fullness, blocked ducts, inflammation or infection may also cause pain. Pain associated with redness, significant swelling, fever or feeling unwell requires medical attention because conditions such as mastitis or an abscess may need treatment. Breast cysts and other benign breast conditions Fluid-filled cysts and other non-cancerous breast changes can cause tenderness or discomfort. Pain alone cannot tell you whether a change is a cyst, another benign condition or something requiring further investigation. If you can feel a new lump as well as pain, see the site’s guide to a new or persistent breast lump. Infection or inflammation Mastitis and breast abscesses can cause pain, warmth, redness, swelling and sometimes fever. Although infection is a common explanation for these symptoms, persistent or unusual inflammatory breast changes should still be reassessed if they do not improve as expected. Injury and chest-wall pain A strain involving the chest, shoulder or upper back can sometimes be perceived as breast pain. Pain arising from the chest wall may be influenced by movement, posture, exercise or pressure over the ribs or muscles. A clinician can help determine whether the pain actually comes from breast tissue. Medicines and hormonal treatments Certain medicines and hormonal treatments can contribute to breast tenderness in some people. Do not stop prescribed medication because of breast pain without discussing it with the clinician who prescribed it. What kind of breast pain deserves closer attention? The pattern often matters more than whether you describe the pain as mild or severe. The American College of Radiology separates diffuse or cyclical pain from clinically significant pain that is focal and noncyclical. Focal means the discomfort is repeatedly localized to one particular area rather than affecting much of the breast. Breast pain is worth medical assessment when it: These findings do not mean that you have cancer. They mean there is enough uncertainty to justify an examination. Breast pain vs breast cancer: what pattern matters? No symptom table can diagnose cancer, but patterns can help explain why some types of pain are more likely to need assessment. Pattern Often less concerning Should be medically assessed Timing Predictably occurs before a period and improves afterward Persistent or unrelated to the menstrual cycle Location General tenderness or discomfort in both breasts Repeated pain in one specific area Other findings No new lump, nipple or skin change New lump, nipple change, discharge or skin abnormality Course Comes and goes in a familiar pattern New, persistent or worsening Breast appearance No visible change Swelling, dimpling, shape change or unusual skin change General health Otherwise well Fever or significant illness with a red, swollen breast This table is a guide to deciding when assessment may be useful. It cannot confirm or exclude cancer. Which breast cancer warning signs should you know? Breast cancer can produce symptoms other than pain. According to the National Cancer Institute, changes that should be checked include a new lump in the breast or underarm, thickening, changes in breast size or shape, abnormal nipple discharge or nipple changes, swelling, dimpling, puckering, and changes in the skin. See the National Cancer Institute’s breast cancer symptom guidance On Dr. Sudip Shrestha’s website, you can also read more about breast cancer warning signs and awareness. Can inflammatory … Read more

Seeing blood after a bowel movement can be frightening, but blood in stool does not automatically mean colorectal cancer. Piles (hemorrhoids), anal fissures and several other digestive conditions can cause rectal bleeding. At the same time, colon or rectal cancer can also cause bleeding, and it is not possible to identify the cause simply by looking at the blood. The practical message is therefore not to panic and not to automatically assume it is piles. New, unexplained, recurring or persistent rectal bleeding deserves appropriate medical evaluation. The American Cancer Society and the U.S. National Institute of Diabetes and Digestive and Kidney Diseases both identify hemorrhoids among common causes of rectal bleeding while emphasizing that other gastrointestinal diseases, including colorectal cancer, can produce similar symptoms. What Can Cause Blood in Stool? Blood can enter the stool from different parts of the gastrointestinal tract. Common or clinically important possibilities include piles, anal fissures, inflammation or infection of the bowel, diverticular disease, gastrointestinal ulcers, inflammatory bowel disease, colorectal polyps and cancer of the colon or rectum. This range of possibilities is why a symptom such as bleeding should not be diagnosed from an internet search alone. Piles can cause rectal bleeding Internal piles commonly cause bright-red blood on the stool, toilet paper or in the toilet bowl after a bowel movement. External piles are more likely to cause symptoms such as itching, a tender lump or pain around the anus. But having symptoms that resemble piles does not prove that piles are the only cause. Colorectal cancer can also cause bleeding Colorectal cancer may cause blood in or on the stool. It may also be associated with a persistent change in bowel habits, diarrhea or constipation, a feeling that the bowel has not emptied completely, abdominal pain or cramps, unexplained weight loss and low iron levels or anemia. Some people with colorectal cancer have no obvious symptoms at first, which is one reason screening is important for eligible people without symptoms. Symptoms, however, require a different approach: diagnostic evaluation. What Does Blood in Stool Look Like? The appearance of blood may provide clues about where bleeding is occurring, but it cannot establish the diagnosis. Bright-red blood often originates from the lower gastrointestinal tract. It may appear as streaks on stool, on toilet paper or in the toilet. Piles and anal fissures are common possibilities, but polyps, inflammatory conditions and colorectal cancer can also produce bleeding. Dark-red blood or blood mixed with stool may come from further inside the gastrointestinal tract and warrants medical attention. Black or tarry stool may indicate bleeding higher in the digestive tract. Acute gastrointestinal bleeding can also cause dizziness, weakness or shortness of breath. Most importantly, there is no specific colour or appearance that reliably tells you, “this is cancer.” Blood caused by cancer can resemble bleeding from other conditions. Piles vs Colorectal Cancer: Can Symptoms Tell the Difference? There is overlap. This table can help you understand patterns, but it cannot diagnose the cause. Finding Piles may cause this Could require investigation for another cause, including colorectal cancer Bright-red blood after stool Yes, especially internal piles Yes Blood on toilet paper Common Possible Anal itching Common Less characteristic of colorectal cancer Tender lump near the anus Possible with external piles Not a typical colorectal-cancer symptom Persistent change in bowel habits Not explained well by piles alone Yes Unexplained iron-deficiency anemia Not usually explained by minor hemorrhoidal bleeding Requires investigation Unexplained weight loss Not typical Can occur Persistent abdominal pain/cramps Not typical of uncomplicated piles Can occur Recurrent unexplained bleeding Possible Should not automatically be attributed to piles NIDDK specifically cautions that although hemorrhoids are a common cause of anal symptoms, not every anal symptom is caused by hemorrhoids, and rectal bleeding can occur with inflammatory bowel diseases or colorectal cancer. That means even a person who has previously been diagnosed with piles should seek reassessment if the bleeding pattern changes or new symptoms appear. Which Symptoms Alongside Blood in Stool Need More Attention? Bleeding becomes particularly important to investigate when it occurs together with other persistent or unexplained changes. Examples include a new change in how often you pass stool, ongoing constipation or diarrhea, a feeling that the bowel does not empty fully, abdominal pain or cramping, unexplained weight loss, increasing fatigue or iron-deficiency anemia. These symptoms still do not prove that cancer is present. Their importance is that they make simply assuming “it is piles” less appropriate. You can also read Dr. Shrestha’s guide to other possible early signs of cancer. When Is Blood in Stool an Emergency? Some bleeding should be assessed urgently. Seek urgent or emergency medical care for large amounts of blood, ongoing active bleeding, several blood clots, or bleeding accompanied by symptoms such as fainting, marked dizziness, shortness of breath, confusion or other signs that you may be losing a significant amount of blood. Black or tarry stool together with weakness or lightheadedness also needs prompt medical attention. Do not wait for an oncology appointment if you appear to be having significant acute gastrointestinal bleeding. How Is Rectal Bleeding Investigated? The appropriate investigation depends on the person, the pattern of bleeding and other symptoms and risk factors. A clinician may ask when the bleeding began, what it looks like, whether it is mixed with the stool or appears only after wiping, whether there is pain, whether bowel habits have changed, what medicines you take and whether there is a personal or family history of colorectal disease. Assessment may include a physical examination and rectal examination. Depending on the findings, doctors may use blood tests, colonoscopy, other endoscopic examinations or imaging to identify the source of bleeding. NCI notes that tests examining the colon and rectum are used when colon cancer needs to be investigated. Not every person with rectal bleeding requires exactly the same test. The purpose is to choose an investigation appropriate to the clinical situation rather than assuming a diagnosis beforehand. Screening Is Not the Same as Investigating Blood in … Read more

Bloating is extremely common, and having a bloated abdomen does not mean you have ovarian cancer. What deserves closer attention is bloating that is new or unusual for you, occurs frequently, persists instead of settling, becomes progressively worse, or appears together with symptoms such as pelvic or abdominal pain, feeling full unusually quickly, changes in urination or bowel habits, or abnormal vaginal bleeding. The CDC advises women to seek medical evaluation when possible ovarian-cancer symptoms continue for around two weeks and are not normal for them. The American Cancer Society similarly emphasizes symptoms that are persistent and occur frequently. This guide explains how to distinguish everyday bloating from a symptom pattern that deserves evaluation, what other warning signs to recognize, which women may have higher risk, and what doctors may do when ovarian cancer needs to be ruled out. Medical note: This article provides general health education. Symptoms cannot diagnose ovarian cancer. Persistent or concerning symptoms require assessment by an appropriately qualified healthcare professional. What Is Ovarian Cancer? Ovarian cancer refers to malignant disease involving the ovaries, but the term is clinically connected with certain cancers of the fallopian tubes and primary peritoneum because these cancers can arise from similar tissues and are often managed in related ways. The ovaries are part of the female reproductive system and sit on either side of the uterus. Some cancers historically classified as ovarian cancers may begin near the end of a fallopian tube and subsequently involve the ovary. There are different ovarian tumour types, and they do not all behave the same way. For readers, however, the most important early lesson is simpler: ovarian cancer does not always announce itself with one dramatic symptom. Its possible symptoms can resemble far more common digestive, urinary, hormonal, or gynecological problems. That overlap is one reason women may initially dismiss bloating, pelvic pressure, changes in appetite, or increased urinary frequency as routine discomfort. The goal should therefore not be to assume cancer whenever bloating occurs. The useful question is: Has something changed from what is normal for your body, and is that change continuing? Can Bloating Really Be a Sign of Ovarian Cancer? Yes, persistent bloating can be one symptom of ovarian cancer, but most episodes of bloating are caused by conditions other than cancer. The CDC lists bloating among recognized ovarian-cancer symptoms along with pelvic pressure or pain, abdominal or back pain, feeling full quickly, difficulty eating, urinary changes, constipation, and abnormal vaginal bleeding or discharge. The difference between ordinary bloating and potentially concerning bloating is usually not a single sensation. It is the pattern. A practical 4P framework: Pattern, Persistence, Progression and Partners This is a reader-friendly framework for symptom awareness not a validated diagnostic scoring system. 1. Pattern: Is this different from your normal bloating? Many women know what ordinary bloating feels like. It may follow a heavy meal, constipation, certain foods, or part of the menstrual cycle and then improve. A new pattern is more important. Examples include waking up repeatedly with abdominal fullness, noticing that the abdomen remains swollen throughout the day, or finding that trousers or a waistband consistently feel tighter despite no obvious explanation. The important comparison is not with another woman’s body. It is with your own usual pattern. 2. Persistence: Does it keep returning or fail to settle? Occasional bloating after eating is different from symptoms occurring day after day. CDC advises medical evaluation when possible ovarian-cancer symptoms last for about two weeks or longer and are not normal for the individual. The American Cancer Society advises discussing symptoms that occur more than about 12 times per month. These are awareness thresholds rather than diagnostic rules. You do not need to wait until a precise number of days has passed when symptoms are clearly worsening or particularly concerning. 3. Progression: Is the symptom becoming more noticeable? A symptom that gradually becomes more frequent, severe, or disruptive deserves attention. For example, occasional evening bloating that progresses to daily abdominal swelling, reduced appetite, or increasing discomfort should not simply be treated indefinitely with home remedies without identifying the cause. Progression does not prove cancer. It means an explanation is needed. 4. Partners: Are other symptoms appearing with the bloating? Bloating becomes more clinically important when it appears alongside other changes such as: The combination still does not diagnose ovarian cancer. But multiple new and persistent symptoms provide a stronger reason for medical assessment. What Are the Main Warning Signs of Ovarian Cancer? The symptom pattern matters more than any single item. Possible warning sign What a woman may notice When it deserves attention Persistent bloating Abdomen repeatedly feels swollen, tight or unusually full New, frequent, persistent or worsening Pelvic/abdominal pain Pressure, aching or discomfort below or around the abdomen Recurrent or unexplained Early fullness Feeling full after a small meal Persistent change from usual appetite Difficulty eating Reduced ability or desire to finish normal meals Especially with bloating or weight change Urinary changes Needing to urinate more often or urgently New without another clear cause Bowel changes Constipation or altered bowel pattern Persistent and unusual for you Back pain New, unexplained lower-back discomfort Especially with abdominal/pelvic symptoms Abnormal vaginal bleeding Bleeding outside expected pattern or after menopause Requires prompt medical assessment These symptoms occur in many non-cancerous conditions. The CDC specifically stresses knowing what is normal for your body and seeking evaluation for changes that are unusual and persistent. Abnormal vaginal bleeding, particularly after menopause, should be assessed promptly. Ovarian Cancer Bloating vs Normal Bloating: What Is the Difference? There is no home test that can reliably tell the difference. However, symptom behaviour can help determine whether medical evaluation is reasonable. Often less concerning More deserving of medical evaluation Appears after certain meals Appears without an obvious food trigger Comes and goes predictably Occurs frequently or nearly every day Improves after bowel movement Persists despite usual measures Matches a familiar menstrual pattern New or different from previous cycles Resolves within a short period Continues for weeks No … Read more

Chemotherapy hair loss happens because some cancer medicines affect rapidly dividing cells in hair follicles while they are treating cancer cells. As a result, hair growth slows, hair shafts become fragile, and scalp hair or body hair may begin to shed. Not every chemotherapy medicine causes hair loss, and the amount of shedding depends on the drugs, dose, treatment schedule, and individual response. For many people, noticeable shedding begins around two to three weeks after the first treatment cycle. Hair often starts returning after chemotherapy ends, although regrowth can take time and, in some cases, may remain incomplete. Understanding the expected timeline, practical scalp care, and whether options such as scalp cooling are suitable can make treatment easier to plan. Evidence checked: August 23, 2026. This educational article does not replace advice from your treating oncology team. What is chemotherapy-induced alopecia? Chemotherapy-induced alopecia is the medical term for hair loss caused by certain cancer medicines. It can involve mild thinning, patchy shedding, or more extensive hair loss. Depending on the treatment, changes may affect the scalp, eyebrows, eyelashes, beard, underarms, or other body hair. Hair loss is a treatment side effect, not an infection and not proof that cancer is spreading. It also does not reveal whether a particular treatment is working. The U.S. National Cancer Institute explains that some chemotherapy medicines can affect hair on the head and other parts of the body. Radiation-related hair loss is different because it usually occurs only in the area being treated. Why does chemotherapy cause hair loss? Some chemotherapy medicines affect rapidly dividing cells. Cancer cells often divide quickly, but certain healthy cells also renew rapidly, including the cells that produce hair. When chemotherapy reaches those active hair-follicle cells, it can interrupt normal hair growth and cause the hair to weaken or fall out. Hair follicles spend much of their time in an active growth stage called the anagen phase. During this stage, cells at the base of the follicle multiply to produce the growing hair shaft. Medicines that disrupt cell division can temporarily disturb this process. The American Cancer Society identifies hair follicles, bone marrow, and the digestive tract as examples of healthy tissues that chemotherapy can affect. This helps explain why hair loss may occur alongside other side effects, even though the medicines are being used for an important therapeutic purpose. For additional background, Dr. Shrestha’s explanation of how chemotherapy affects healthy and cancerous cells describes why treatment effects differ across tissues. Does losing hair mean chemotherapy is working? No. Hair loss reflects how a particular treatment affects hair follicles; it does not show whether cancer is responding. Oncologists assess treatment through appropriate examinations, scans, laboratory tests, and other clinical information. A patient can respond well to treatment without losing hair, and visible hair loss does not guarantee a better result. Does every chemotherapy treatment cause hair loss? No. Some chemotherapy regimens cause substantial hair loss, some cause only thinning, and others have little visible effect. The likelihood depends on the specific medicines, their dose, how they are combined, the treatment schedule, and individual factors. Medicines more commonly associated with significant hair loss can include: These examples do not mean every person receiving one of these medicines will have the same experience. A medicine’s effects can change when it is combined with other treatments or given on a different schedule. For example, someone receiving chemotherapy for breast cancer may have a different hair-loss risk from someone receiving treatment for another cancer. Ask your oncology team about the actual names of the medicines in your treatment plan rather than relying on another patient’s experience. Targeted therapies, immunotherapy, and hormone treatments can sometimes cause hair thinning or other hair changes, but their effects are not identical to those of conventional chemotherapy. Radiation therapy usually affects hair only in the treatment field. When does hair loss start during chemotherapy? When hair loss is going to occur, shedding commonly begins about two to three weeks after the first chemotherapy cycle, although the timing varies. The scalp may feel sensitive before hair begins falling out, and shedding can become more noticeable around later treatment cycles. The American Cancer Society’s patient guidance describes this common two-to-three-week pattern. The timeline below is a guide, not a prediction for an individual patient. Treatment stage What may happen Useful next step Before treatment begins Your oncology team can explain whether the planned medicines commonly affect hair. Ask about expected hair loss, scalp care, and scalp-cooling eligibility. Around 2–3 weeks after the first cycle Some people notice thinning, loose hair on the pillow, or increased shedding while washing. Handle hair gently and prepare comfortable head coverings if desired. During later treatment cycles Hair loss may become more noticeable, remain partial, or affect eyebrows and body hair. Continue scalp protection and report painful or inflamed skin. After chemotherapy ends Shedding often settles as hair follicles recover. Ask when it is appropriate to consider hair-regrowth support. Approximately 2–3 months after treatment Many people begin noticing new growth, although timing and thickness vary. Protect new hair and discuss delayed or incomplete regrowth with your clinician. The practical message is that preparation is often easiest before the first infusion. Patients who prepare for chemotherapy treatment can include hair-loss questions alongside discussions about other expected side effects. Some people cut their hair shorter before shedding begins because shorter strands can feel easier to manage. This is a personal preference, not a medical requirement, and it does not prevent hair loss. Which parts of the body can lose hair? Chemotherapy can affect scalp hair, eyebrows, eyelashes, beard hair, underarm hair, and other body hair. The pattern varies between medicines and individuals, and not everyone loses hair in all these areas. Eyebrow or eyelash loss can feel especially noticeable because it changes facial appearance. Loss of nasal hair may also make some people more aware of nasal dryness or irritation, although this is not universal. If your eyelashes thin and your eyes become irritated, ask your … Read more

H. pylori and stomach cancer are strongly connected, but the relationship is often misunderstood. Chronic infection with Helicobacter pylori can cause long-lasting inflammation of the stomach lining and is an important cause of non-cardia gastric cancer. However, having H. pylori or gastritis does not mean that a person will automatically develop cancer. The frequently repeated “90%” figure also needs context. An International Agency for Research on Cancer analysis estimated that about 89% of non-cardia gastric cancers worldwide were attributable to H. pylori infection. This does not mean H. pylori causes 90% of all cancers, or that 90% of people infected with the bacterium will develop stomach cancer. Understanding this distinction can help people with recurrent gastritis or a confirmed H. pylori infection take appropriate action without unnecessary fear. What Is H. pylori and How Does It Affect the Stomach? Helicobacter pylori, usually shortened to H. pylori, is a bacterium that can colonize the stomach lining. H. pylori infection is one of the most common causes of chronic gastritis. Many infected people have no obvious symptoms, while others experience indigestion, abdominal discomfort, nausea, ulcers or other gastric problems. Chronic H. pylori infection causes persistent inflammation in the stomach. In some people, that inflammation remains relatively limited. In others, years of inflammation can lead to structural changes in the stomach lining that are associated with a greater risk of gastric cancer. H. pylori has been classified as a human carcinogen because of its established relationship with gastric adenocarcinoma and gastric MALT lymphoma. This makes H. pylori important not only to gastroenterology but also to cancer prevention. What Does the “89% of Stomach Cancer” Statistic Actually Mean? The number is frequently quoted incorrectly. An IARC analysis examining the worldwide cancer burden estimated that 89% of non-cardia gastric cancers were attributable to H. pylori infection. Non-cardia gastric cancer develops in the main part of the stomach rather than the area immediately adjacent to the esophagus. The denominator matters. Statement Is it accurate? Correct interpretation “H. pylori causes 90% of all cancers.” No Cancer has many causes and risk factors. “90% of people with H. pylori get stomach cancer.” No Most infected people do not develop gastric cancer. “Gastritis causes 90% of cancer.” No Gastritis has different causes and does not automatically progress to cancer. “Around 89% of non-cardia gastric cancers were attributable to H. pylori in an IARC global analysis.” Yes This is the population-level estimate being referenced. The original IARC analysis was based on global cancer burden estimates from 2008, so it should also be presented with that historical context rather than as a newly measured 2026 percentage. The practical message is still important: H. pylori is one of the most significant preventable causes of gastric cancer, but individual cancer risk depends on much more than simply testing positive for the infection. How Can H. pylori Gastritis Progress Toward Stomach Cancer? Cancer does not usually appear immediately after H. pylori infection. The concern is persistent inflammation over a long period. NCI describes chronic H. pylori infection as causing long-lasting gastritis in most infected people. In some individuals, this may progress to atrophic gastritis, in which the stomach lining becomes thinner and damaged. The pathway may broadly be understood as: H. pylori infection → chronic inflammation → atrophic gastritis → intestinal metaplasia → dysplastic changes → gastric cancer in some patients This sequence is a risk pathway, not a guaranteed outcome. Atrophic gastritis and gastric intestinal metaplasia are particularly important because NCI recognizes both as conditions associated with an increased risk of stomach cancer. This is why simply asking, “Do I have gastritis?” is sometimes less useful than determining what type of gastritis is present, what caused it, and whether the stomach lining has undergone significant long-term changes. Does Having Gastritis Mean You Will Develop Cancer? No. “Gastritis” simply describes inflammation of the stomach lining. It can have different causes. H. pylori infection is an important cause, but gastritis and stomach cancer are not the same disease. Many people with gastritis never develop cancer. The concern rises particularly when there is long-standing H. pylori infection associated with atrophic changes, intestinal metaplasia or other recognised gastric-cancer risk factors. A useful clinical distinction is therefore: Condition What it means Cancer relevance Acute or uncomplicated gastritis Inflammation of stomach lining Does not mean cancer H. pylori gastritis Chronic infection-related inflammation Can increase long-term gastric-cancer risk Atrophic gastritis Loss/thinning of normal gastric lining Recognised risk condition Gastric intestinal metaplasia Gastric cells replaced by intestinal-type cells Associated with increased gastric-cancer risk Gastric cancer Malignant growth in stomach tissue Requires cancer-specific diagnosis and treatment This distinction can prevent two common mistakes: ignoring persistent symptoms because they are assumed to be “just gastritis,” or becoming unnecessarily frightened because a routine gastritis diagnosis is mistaken for cancer. What Symptoms Can H. pylori Gastritis Cause? Many people with gastritis have no symptoms. When symptoms occur, NIDDK lists problems such as upper-abdominal discomfort, nausea, vomiting, early fullness, excessive fullness after eating and reduced appetite. These symptoms are not specific to cancer. Stomach cancer can also produce vague symptoms such as indigestion, stomach discomfort, bloating after eating, mild nausea, loss of appetite or heartburn. This overlap is one reason symptoms alone cannot reliably distinguish benign gastritis from gastric cancer. Persistent or changing symptoms deserve more attention than an isolated episode of indigestion. Dr. Sudip Shrestha’s existing guidance on early signs of cancer also emphasizes the importance of investigating persistent and unexplained changes rather than trying to diagnose cancer from a single symptom. Which Stomach Symptoms Should Not Be Ignored? Medical evaluation becomes particularly important when symptoms are persistent, progressive or accompanied by warning features. Examples include unexplained weight loss, persistent vomiting, worsening stomach pain, difficulty swallowing, reduced appetite or evidence of gastrointestinal bleeding. NCI lists blood in the stool, vomiting, unexplained weight loss and stomach pain among possible symptoms of more advanced stomach cancer. Black or tarry stool, red blood in vomit or vomit resembling coffee grounds can indicate bleeding in the stomach and … Read more

No. A breast lump is not always a sign of cancer. Many lumps are caused by non-cancerous conditions such as breast cysts, fibroadenomas, hormonal breast changes, infection or fat necrosis. However, it is not possible to determine the cause reliably by touching the lump or judging whether it is painful. Every new, persistent or changing breast lump should be medically assessed, even when it feels smooth, moves under the skin or does not hurt. Evaluation may include a clinical breast examination, ultrasound, diagnostic mammography and, when needed, a biopsy. Most breast changes are benign, but timely assessment is the safest way to distinguish a harmless condition from breast cancer. This article provides general education. It cannot diagnose an individual breast lump or replace an examination by a qualified healthcare professional. What is a breast lump? A breast lump is an area that feels different from the surrounding breast tissue. It may feel like a distinct mass, a firm area, localized thickening or a change extending toward the underarm. Some people naturally have breasts that feel nodular or uneven, particularly around menstrual periods. The concern is generally greater when a lump is: A person may discover a lump during bathing, dressing, breastfeeding, self-awareness or a clinical examination. A lump may also appear on imaging before it can be felt. What are the common non-cancerous causes of breast lumps? Most breast lumps and breast changes are not cancer. Benign conditions differ in how they develop, how they feel and whether they require treatment or monitoring. Breast cysts A breast cyst is a fluid-filled sac. It may feel soft, firm, round or tender, and its size or discomfort may change around the menstrual cycle. Cysts are more common before menopause, although they may occur at other ages. Ultrasound can often show whether a lump is fluid-filled or solid. Some cysts require no treatment, while a painful or uncertain cyst may be aspirated or investigated further. A cyst should not be diagnosed by touch alone. Some solid masses can feel smooth, while a tense cyst can feel hard. Fibroadenoma A fibroadenoma is a common benign growth made from glandular and fibrous breast tissue. It often feels smooth, firm or rubbery and may move under the skin. Fibroadenomas are especially common in younger women, but they may occur at any age. Many do not require treatment once imaging and, where necessary, tissue assessment have established the diagnosis. A growing, unusual or symptomatic fibroadenoma may require follow-up or removal. Hormonal or fibrocystic breast changes Hormonal changes can make the breasts feel tender, swollen or generally lumpy. These changes may become more noticeable before a menstrual period and improve afterward. A recurring hormonal pattern can be reassuring, but it should not be used to dismiss a new, dominant lump. A persistent focal area requires evaluation even when the rest of the breasts normally feel nodular. Mastitis or breast abscess Mastitis is inflammation of the breast, often associated with infection and breastfeeding. It may cause: An abscess is a collection of pus that may form as a painful lump. These conditions require medical care and may need antibiotics, drainage or imaging. Not every red or swollen breast is an infection. Rapidly spreading breast redness, swelling or orange-peel skin that does not respond as expected requires reassessment because inflammatory breast cancer can sometimes resemble mastitis. Fat necrosis Fat necrosis occurs when fatty breast tissue is damaged, sometimes after an injury, operation, injection or radiotherapy. It may form a firm lump and can resemble cancer on examination or imaging. The injury may have been minor or forgotten. Imaging and sometimes biopsy are needed when the appearance is uncertain. Other benign or uncommon conditions Other possible causes include: Phyllodes tumours are uncommon. Most are benign, but some are borderline or malignant, so a rapidly growing breast mass needs appropriate assessment. Can you tell whether a breast lump is cancerous by how it feels? No. The feel of a lump may guide clinical suspicion, but it cannot confirm or exclude cancer. People are often told that: These rules are unreliable. A fibroadenoma may feel smooth and mobile, while a cyst may be tender. Some breast cancers feel firm, irregular or fixed, but others may feel round, movable, soft or painful. A person may also have cancer without a lump that can be felt. The practical rule is simple: a new or unexplained lump deserves evaluation regardless of texture, movement or pain. Feature May occur with benign conditions May occur with breast cancer Smooth or round shape Yes Yes Irregular shape Sometimes Yes Moves under the skin Commonly Sometimes Feels fixed Sometimes Yes Pain or tenderness Commonly Sometimes No pain Commonly Commonly Changes with menstrual cycle More suggestive of a hormonal cause Less typical, but does not exclude cancer Rapid growth Possible Possible Skin or nipple changes Possible with infection or inflammation Possible The table shows why touch alone is insufficient. Clinical context, imaging and occasionally pathology provide the answer. Which warning signs should be assessed promptly? A breast lump should be evaluated particularly promptly when it occurs with: These signs do not prove that cancer is present. Infection, inflammation and benign conditions can produce overlapping symptoms. They do, however, increase the importance of timely examination. The website’s article on breast-cancer warning signs in Nepal provides broader symptom and awareness information. When is urgent care appropriate? Seek prompt medical care when a breast lump is accompanied by: These features may indicate a significant infection or another condition requiring timely investigation. How is a breast lump diagnosed? The purpose of assessment is to determine whether the lump is: Evaluation often combines three elements: clinical assessment, breast imaging and tissue sampling when indicated. This combination is sometimes called triple assessment. 1. Medical history The clinician may ask: These details change the probability of different causes but do not establish the diagnosis alone. 2. Clinical breast examination The clinician examines both breasts, nipples and the lymph-node areas under the arms and near the collarbones. The … Read more

Does cancer run in families? Sometimes, but most cancers are not directly inherited. Around 5%–10% of cancers are believed to result from harmful genetic changes passed from a parent. In other families, several relatives may develop cancer because they share certain behaviours, environmental exposures, or common risk factors. A family history of cancer therefore does not mean that you will inevitably develop the disease. It means your medical oncologist may need to examine the types of cancer in your family, the ages at diagnosis, and which relatives were affected before recommending genetic counseling, testing, or earlier screening. Key Points at a Glance Question Direct answer Is most cancer hereditary? No. Only about 5%–10% of cancers are linked to inherited harmful gene changes. Can cancer come from either parent? Yes. A cancer risk variant may be inherited from the mother’s or father’s side. Does inheriting a mutation guarantee cancer? No. It raises risk but does not determine whether or when cancer will develop. Who may need genetic counseling? People with young age cancers, several affected relatives, rare cancers, or related cancers across generations. Can screening reduce risk? Screening does not prevent every cancer, but it may detect some cancers earlier when treatment can be more effective. These figures describe inherited susceptibility, not certainty. Personal risk depends on the specific gene, family history, age, sex, lifestyle, and other medical factors. Does Cancer Run in Families Because of Genetics? Cancer may appear repeatedly in a family for three broad reasons: an inherited gene variant, shared risk factors, or coincidence. The pattern matters more than the simple presence of cancer in one relative. A single family member diagnosed with a common cancer at an older age usually has a different significance from several close relatives developing related cancers before age 50. Hereditary, familial, and sporadic cancer compared Cancer pattern What it means Common clues Hereditary cancer Cancer risk is increased by a harmful gene variant passed through a family. Early diagnosis, multiple generations affected, rare cancers, bilateral cancers, or multiple cancers in one person Familial cancer Cancer occurs more often in a family, but no single inherited variant has been confirmed. Several relatives affected, possibly due to a combination of genes, lifestyle, and environment Sporadic cancer Cancer develops mainly from genetic changes acquired during life. No strong family pattern; often associated with ageing, exposures, infections, lifestyle, or chance Cancer itself is not passed from one person to another through a family. What may be inherited is a genetic change that increases susceptibility to certain cancers. What Is the Role of Genetics in Cancer? Genes contain instructions that help cells grow, divide, repair damage, and die at the appropriate time. Cancer develops when genetic changes disrupt these normal controls and allow abnormal cells to grow uncontrollably. All cancers involve genetic changes in cells, but not all of those changes are inherited. Germline mutations versus somatic mutations Type of genetic change Where it is found Can it be inherited? Why it matters Germline variant Usually present in nearly every cell from birth Yes May increase cancer risk for the individual and blood relatives Somatic or tumour mutation Found only in the tumour or affected tissue No May influence how the cancer behaves and which treatment may work This distinction is important. A mutation identified during tumour testing does not automatically mean the mutation was inherited. A separate blood or saliva test may be needed to determine whether it is a germline variant. How Much Cancer Is Hereditary? The National Cancer Institute estimates that approximately 5%-10% of cancers are caused by harmful inherited genetic changes. The remaining cancers are mainly associated with genetic damage acquired during life, ageing, environmental factors, infections, lifestyle, or a combination of influences. Some inherited variants can create a much higher lifetime risk for particular cancers. For example: Genetic finding Estimated cancer risk Harmful BRCA1 or BRCA2 variant More than 60% lifetime risk of female breast cancer Harmful BRCA1 variant Approximately 39%–58% lifetime risk of ovarian cancer Harmful BRCA2 variant Approximately 13%–29% lifetime risk of ovarian cancer Autosomal dominant cancer-risk variant in a parent Each child usually has a 50% chance of inheriting the variant A 50% chance of inheriting a variant does not mean a 50% chance of developing cancer. The actual cancer risk depends on the gene’s penetrance, the type of variant, age, sex, lifestyle, and other modifying factors. What Family History Patterns Suggest Hereditary Cancer Risk? One cancer diagnosis in a large family does not automatically indicate an inherited cancer syndrome. Doctors look for patterns that are unusual for sporadic cancer. Genetic counseling may be considered when a personal or family history includes: These clues do not prove that a mutation is present. They indicate that a structured genetic risk assessment may be useful. For a symptom-focused discussion, read this guide to family cancer warning signs. Which Cancers Can Be Hereditary? Several cancers may be associated with inherited cancer syndromes. However, most people who develop these cancers do not necessarily have an inherited mutation. Hereditary syndrome Common genes Cancers that may be associated Hereditary breast and ovarian cancer syndrome BRCA1, BRCA2, PALB2 and others Breast, ovarian, pancreatic, prostate and male breast cancer Lynch syndrome MLH1, MSH2, MSH6, PMS2, EPCAM Colorectal, endometrial, ovarian, stomach, urinary tract and other cancers Familial adenomatous polyposis APC Colorectal and some upper gastrointestinal cancers Li-Fraumeni syndrome TP53 Breast cancer, sarcoma, brain tumours, leukaemia and adrenal cancer Hereditary diffuse gastric cancer CDH1, CTNNA1 Diffuse gastric cancer and lobular breast cancer Multiple endocrine neoplasia type 2 RET Medullary thyroid cancer and certain endocrine tumours Von Hippel–Lindau syndrome VHL Kidney cancer and several benign or malignant tumours Hereditary retinoblastoma RB1 Retinoblastoma and increased risk of certain later cancers The exact cancer spectrum varies by gene. A multigene panel should therefore be selected according to a person’s medical and family history rather than ordered without clinical guidance. Is Cancer Hereditary From the Mother or Father? A harmful cancer-risk variant can be inherited from either the mother or the father. … Read more

A chronic cough is a cough that lasts for more than eight weeks in adults. It is often caused by conditions that can be treated, such as asthma, acid reflux, allergies, smoking related airway disease or a lingering airway irritation after an infection. However, a persistent cough can also be a sign of tuberculosis (TB), lung cancer or another condition that needs timely medical assessment. The key message is simple: do not diagnose the cause from the cough alone. Pay attention to how long it has lasted, whether it is changing, and whether warning signs such as fever, weight loss, coughing up blood, chest pain or breathlessness are present. A proper evaluation can identify the cause and guide safe chronic cough treatment. Quick answer: A cough lasting over eight weeks should be assessed by a clinician, especially when it is worsening, changes a smoker’s usual cough, or occurs with weight loss, blood in sputum, fever, night sweats or shortness of breath. What Does Chronic Cough Mean? Coughing helps clear irritants and secretions from the airways. It becomes clinically important when it persists beyond expected recovery or disrupts sleep and daily life. For adults, clinicians commonly describe a cough as: Cough pattern Usual duration What it may suggest Acute cough Less than 3 weeks Often a viral infection, irritation or a short-term respiratory illness Subacute cough 3 to 8 weeks Often a post-infectious cough, although other causes are possible Chronic cough More than 8 weeks Requires a structured assessment for airway, lung, reflux, medicine-related or other causes Refractory or unexplained cough Persists despite appropriate assessment and treatment May need specialist review and cough-focused management Dry and wet/productive are additional descriptions. Either can become long lasting, so cough character alone cannot confirm or rule out TB, lung cancer or another serious disease. Is Chronic Cough Dangerous? A chronic cough is not automatically dangerous, but it should not be ignored. Many causes are manageable once identified. The concern rises when the cough is persistent, progressively worse, associated with systemic symptoms, or present in a person with risk factors such as tobacco use, previous TB, significant secondhand smoke exposure, chronic lung disease or a family history of lung cancer. Repeated coughing can also disturb sleep, irritate the throat and reduce quality of life. Delayed assessment may postpone treatment of a condition that needs specific care. In Nepal, this is particularly relevant because TB remains an important cause of prolonged respiratory symptoms, while lung cancer is a major cancer burden. IARC GLOBOCAN 2022 estimated 2,431 new lung cancer cases and 2,207 lung-cancer deaths in Nepal that year. These numbers describe the national burden, not an individual person’s risk. They do underline why a cough with warning signs deserves careful evaluation. What Causes Frequent Coughing? Frequent coughing can start in the nose and throat, the airways, the lungs, the stomach, or from a medicine side effect. The most likely explanation depends on the symptom pattern, medical history and examination. 1. Upper Airway Cough Syndrome Allergic rhinitis, sinus inflammation and postnasal drip can irritate the throat and trigger frequent throat clearing or coughing. Nasal blockage, sneezing and a sensation of mucus at the back of the throat may occur. 2. Asthma and Cough-Variant Asthma Asthma can present mainly as coughing rather than obvious wheezing. Symptoms may be worse at night, early in the morning, with exercise, dust, cold air or strong smells. Lung-function testing can help identify airway narrowing and guide treatment. 3. Acid Reflux or Laryngopharyngeal Reflux Stomach contents can irritate the food pipe and upper airway. Symptoms may include heartburn, a sour taste, cough, hoarseness or throat clearing after meals or when lying down. Reflux should be assessed in the full clinical context. 4. Post-Infectious Airway Irritation A cough can continue after a viral illness even when fever and other acute symptoms have resolved. It should gradually improve. A cough that remains unchanged, worsens or lasts beyond eight weeks needs reassessment rather than repeated self-medication. 5. Smoking-Related Disease and Environmental Exposure Tobacco smoke raises the risk of chronic bronchitis, COPD and lung cancer. Secondhand smoke, workplace dust, biomass smoke and air pollution may also aggravate symptoms. A new or clearly changing smoker’s cough should be reviewed. 6. Medicines Some blood-pressure medicines, particularly ACE inhibitors, can cause a dry, persistent cough. Do not stop a prescribed medicine on your own. A clinician can review the timing of symptoms and decide whether an alternative is appropriate. 7. Chronic Lung Conditions COPD, bronchiectasis and other lung diseases can cause ongoing cough. Persistent sputum, recurrent chest infections, wheeze or breathlessness may need pulmonary assessment. Could a Persistent Cough Be Tuberculosis? Yes, a persistent cough can be caused by pulmonary TB, but a cough does not automatically mean TB. TB is an infection caused by bacteria that often affects the lungs. It is preventable and curable with the correct treatment, but it needs confirmed diagnosis and a complete treatment plan. Symptoms that may raise concern for TB include: These features can overlap with many other illnesses, including pneumonia, chronic lung disease and cancer. That is why it is unsafe to rely on a symptom checklist alone. How Is TB Evaluated? A clinician will take a history, examine the chest and decide which tests are appropriate. Depending on symptoms and local protocols, the assessment may include a chest X-ray and sputum testing. WHO recommends rapid molecular tests as an initial diagnostic approach for people being evaluated for TB because they can detect TB bacteria and assess for certain drug resistance more quickly. A chest X-ray alone does not confirm TB; laboratory testing and clinical judgement matter. If TB is diagnosed, treatment must be taken exactly as prescribed and completed. Starting, stopping or sharing medicines without supervision can make treatment harder and increase the risk of drug resistance. Could Chronic Cough Be a Sign of Lung Cancer? A long-lasting cough is one possible symptom of lung cancer, but it is far more often caused by non-cancer conditions. The purpose of evaluation … Read more

Night Sweats Without Fever can be confusing and worrying, especially when they happen repeatedly without a clear infection, hot weather, heavy blankets, or fever. In many cases, night sweats are caused by hormonal changes, stress, medications, thyroid problems, diabetes, or sleep related issues. However, persistent, drenching night sweats without fever or infection should not be ignored. In some people, they may be a warning sign of cancer, especially blood cancers such as lymphoma or leukemia. The key is not to panic, but to understand the pattern, associated symptoms, and when medical evaluation is necessary. This article explains what night sweats mean, when they may be serious, what symptoms to watch for, and when to consult a Medical Oncologist for timely evaluation and cancer treatment in Nepal. Quick Answer: Are Night Sweats Without Fever Always Cancer? No. Night sweats without fever are not always cancer. Most night sweats are linked to non-cancer causes such as menopause, anxiety, medications, low blood sugar, thyroid imbalance, alcohol use, or sleep environment. But when night sweats are frequent, drenching, unexplained, and occur with symptoms like unexplained weight loss, fatigue, swollen lymph nodes, persistent cough, itching, or loss of appetite, they need medical attention. The concern is higher when the sweating is severe enough to soak clothes or bedsheets and keeps happening even in a cool room. What Are Night Sweats? Night sweats are episodes of excessive sweating during sleep. They are different from feeling warm at night because of hot weather, thick blankets, or poor room ventilation. True night sweats usually involve: Type of Sweating What It Means Mild sweating Slight sweating due to room temperature, clothing, stress, or diet Moderate sweating Waking up sweaty but not soaking clothes or bedding Drenching night sweats Sweating heavily enough to change clothes or bedsheets Recurrent unexplained sweating Repeated episodes without fever, infection, or environmental cause The most important clinical question is not only “Did I sweat at night?” but “Why is this happening repeatedly?” Why Night Sweats Without Fever Need Attention Fever and infection are common reasons for sweating at night. When the body fights infection, body temperature may rise and fall, leading to sweating. But when night sweats happen without fever or infection, doctors usually consider other possible causes, including: This does not mean every unexplained night sweat is dangerous. It means the symptom should be interpreted with the whole clinical picture. For example, occasional sweating during a stressful week is different from repeated drenching sweats with weight loss and swollen lymph nodes. How Can Night Sweats Be a Warning Sign of Cancer? Cancer can sometimes trigger night sweats because of changes in the immune system, inflammation, hormone like substances, or the body’s response to abnormal cells. This is more commonly discussed in relation to blood cancers, especially lymphoma. In lymphoma, night sweats may occur with fever and unexplained weight loss. These are often called “B symptoms” in medical practice. Cancer-related night sweats are often described as: Night sweats alone do not diagnose cancer. But they may become clinically important when they appear together with other warning signs. Cancers Commonly Associated With Night Sweats Night sweats can occur in different medical conditions, but some cancers are more commonly associated with this symptom. Possible Cancer Type Why Night Sweats May Occur Other Symptoms to Watch Lymphoma Immune system activity and inflammatory response Swollen lymph nodes, fever, weight loss, itching, fatigue Leukemia Abnormal blood cells affecting the body’s normal function Fatigue, infections, bruising, paleness, weight loss Neuroendocrine tumors Hormone-like substances may affect sweating and flushing Flushing, diarrhea, wheezing, abdominal symptoms Advanced cancers Body inflammation, metabolic changes, or treatment effects Weight loss, fatigue, pain, appetite loss Among these, lymphoma is one of the most well-known cancers linked with drenching night sweats. However, diagnosis requires proper medical history, physical examination, blood tests, imaging, and sometimes biopsy. Night Sweats and Lymphoma: What Makes It Different? Lymphoma is a cancer of the lymphatic system. The lymphatic system is part of the immune system and includes lymph nodes, spleen, bone marrow, and lymph vessels. Night sweats related to lymphoma are often not mild. Many patients describe them as heavy sweating that soaks nightclothes or bed sheets. Other possible lymphoma symptoms include: A painless lump that stays for weeks, especially with drenching night sweats, should be checked by a doctor. Night Sweats and Leukemia Leukemia is a cancer of blood-forming tissues, including bone marrow. It can affect the production and function of white blood cells, red blood cells, and platelets. Night sweats in leukemia may occur due to the body’s response to abnormal blood cells, infection risk, or inflammation. Other symptoms may include: Because many leukemia symptoms can look like common illnesses, persistent symptoms should not be dismissed. Common Non-Cancer Causes of Night Sweats Most night sweats are not caused by cancer. A balanced evaluation should always consider common causes first. Cause How It May Cause Sweating Clues Hot room or heavy blankets Body overheats during sleep Improves with cooler room Menopause or perimenopause Hormonal changes affect temperature control Hot flashes, irregular periods Anxiety and stress Nervous system activation Racing thoughts, poor sleep Medications Some drugs affect sweating Started after new medicine Thyroid imbalance Overactive metabolism Weight loss, tremor, palpitations Low blood sugar Body stress response during sleep Diabetes, skipped meals, sweating with weakness Sleep apnea Repeated breathing disturbance Snoring, daytime sleepiness Infections Body temperature changes Fever, cough, diarrhea, weakness Alcohol use Affects sleep and body temperature Sweating after alcohol intake This is why self-diagnosis can be misleading. A doctor will look at the full symptom pattern before deciding which tests are needed. When Are Night Sweats More Concerning? Night sweats become more concerning when they are persistent, severe, unexplained, and associated with other symptoms. See a doctor if night sweats: A single night of sweating is usually not a major concern. A repeated pattern deserves attention. Difference Between Normal Night Sweats and Possible Cancer-Related Sweats Feature Usually Less Concerning Needs Medical Evaluation Frequency Occasional Recurrent or worsening Severity Mild sweating Drenching sweat … Read more

Can Lifestyle Changes Prevent Cancer? The answer is…., Yes, healthy lifestyle changes can reduce the risk of many cancers, but they cannot prevent cancer completely. Cancer can also be influenced by age, genetics, infections, environment, and random cell changes. The goal of cancer prevention is not to promise 100% protection. It is to lower avoidable risks, detect cancer early, and support better long-term health. According to the World Health Organization, tobacco use, alcohol consumption, unhealthy diet, physical inactivity, and air pollution are major cancer risk factors. WHO also states that 30-50% of cancer deaths could be prevented through risk reduction and evidence-based prevention strategies. For people in Nepal, this means daily choices matter: avoiding tobacco, limiting alcohol, maintaining a healthy weight, eating more plant-based foods, staying active, getting vaccinated, and attending recommended screening. Can lifestyle changes really reduce cancer risk? Lifestyle changes can reduce the risk of several common cancers, including cancers of the lung, mouth, throat, liver, bowel, breast, cervix, and stomach. The World Cancer Research Fund states that up to 40% of cancer cases are preventable, mainly through healthy lifestyle and environmental changes. However, cancer prevention should be understood carefully. Lifestyle changes can: Lifestyle action How it helps Avoiding tobacco Reduces risk of lung, mouth, throat, bladder, pancreas, and other cancers Staying active Helps weight control, insulin balance, immunity, and inflammation Healthy diet Supports gut health and reduces exposure to processed-food risks Limiting alcohol Lowers risk of several cancers Vaccination Helps prevent HPV-related and hepatitis B-related cancers Screening Detects selected cancers early before symptoms appear Lifestyle changes cannot guarantee that cancer will never occur. They reduce risk. Why cancer prevention matters in Nepal Cancer cases are increasing in Nepal due to longer life expectancy, lifestyle changes, tobacco use, pollution, infections, delayed screening, and improved diagnosis. Many patients still visit hospitals only after symptoms become serious. This can make treatment more complex and expensive. Early prevention and screening can reduce the need for advanced cancer treatment in Nepal. When cancer is detected early, treatment is often more effective and less intensive. Dr. Sudip Shrestha is a senior consultant medical oncologist and Executive Chairman of Nepal Cancer Hospital and Research Center, with long-standing contributions to oncology services in Nepal. The biggest lifestyle-related cancer risk factors 1. Tobacco use Tobacco is one of the strongest preventable causes of cancer. This includes cigarettes, chewing tobacco, khaini, gutkha, hookah, and secondhand smoke. The National Cancer Institute notes that tobacco products contain chemicals that damage DNA and increase cancer risk. Tobacco is linked with cancers of the lung, mouth, throat, voice box, esophagus, bladder, kidney, pancreas, stomach, cervix, and blood. Best prevention step: Do not start tobacco. If you use it, seek medical help to quit. 2. Alcohol consumption Alcohol increases the risk of several cancers, including mouth, throat, esophagus, liver, colorectal, and breast cancer. There is no completely “safe” level of alcohol for cancer prevention. Reducing or avoiding alcohol is the better choice. 3. Unhealthy diet A cancer-preventive diet does not mean a strict or expensive diet. It means eating more whole foods and fewer highly processed foods. Focus on: WCRF recommends eating a diet rich in whole grains, vegetables, fruit, and beans, while limiting fast foods, processed meat, sugary drinks, and alcohol. 4. Physical inactivity Regular physical activity helps reduce cancer risk by supporting body weight, hormone balance, immune function, digestion, and inflammation control. Aim for walking, cycling, household activity, sports, yoga, or any movement you can maintain consistently. The American Cancer Society links excess body weight, physical inactivity, unhealthy diet, and excess alcohol with about 1 in 5 cancers. 5. Excess body weight Excess body fat is linked with several cancers, including breast cancer after menopause, colorectal cancer, endometrial cancer, kidney cancer, liver cancer, and pancreatic cancer. The goal is not appearance. The goal is metabolic health. Healthy weight management should be gradual and medically appropriate. 6. Infections Some cancers are linked to infections. Important examples include: Infection Related cancer risk HPV Cervical, throat, anal, penile, vulvar cancers Hepatitis B and C Liver cancer H. pylori Stomach cancer HPV vaccination, hepatitis B vaccination, safe practices, and medical treatment for infections can reduce risk. 7. Sun and radiation exposure Excess ultraviolet radiation increases skin cancer risk. Use shade, protective clothing, and sunscreen when exposed to strong sunlight. Unnecessary radiation exposure should also be avoided, but medically needed scans should not be skipped when recommended. Practical cancer prevention plan Eat more protective foods A simple Nepali plate can support cancer prevention: Plate section Examples Half plate Saag, cauliflower, carrot, cucumber, seasonal vegetables Quarter plate Dal, beans, egg, fish, chicken, soy Quarter plate Brown rice, roti, dhido, millet, oats Add-ons Fruit, curd, nuts, seeds Move daily You do not need a gym. Start with brisk walking, stairs, stretching, cycling, or active household work. Consistency matters more than intensity. Avoid tobacco completely This is one of the most powerful cancer prevention steps. Secondhand smoke should also be avoided, especially around children, elderly people, and patients. Limit or avoid alcohol For cancer prevention, avoiding alcohol is best. If someone drinks, reducing frequency and quantity is safer than regular drinking. Get vaccinated Ask your doctor about: These vaccines can prevent infections linked to cancer. Do cancer screening Screening means checking for cancer before symptoms appear. Screening can help detect selected cancers early. Common screening areas include: Cancer type Screening method Cervical cancer Pap smear, HPV test, VIA Breast cancer Clinical breast exam, mammography when advised Colorectal cancer Stool test, colonoscopy when advised Lung cancer Low-dose CT for selected high-risk individuals Oral cancer Oral examination, especially for tobacco users Screening should be based on age, symptoms, family history, and risk factors. When should you consult a medical oncologist in Nepal? You should consult a medical oncologist if you have: An oncologist helps plan diagnosis, staging, treatment, follow-up, and supportive care. Can lifestyle changes help after cancer diagnosis? Yes. Healthy habits may support strength, treatment tolerance, recovery, and quality of life. But lifestyle changes should not replace medical … Read more