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Doctor insights on: Cancer Narrow Stool

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Chance that 4 CT scans over 2 1/2 years would all miss sympotomatic colon cancer (narrow stool, occasion blood), also sigmoidscope to 35 cm.

Chance that 4 CT scans over 2 1/2 years would all miss sympotomatic colon cancer (narrow stool, occasion blood), also sigmoidscope to 35 cm.

Fairly high risk: CT scans are NOT good tools for looking inside the bowel. Endoscopy is the preferred tool, but a sigmoidoscopy, at its best, misses looking at half the colon. A look to merely 35 cm has missed about 85-90% of the colon. The usual method to evaluate the colon is a complete colonoscopy. ...Read more

Dr. Barry Rosen
4,342 Doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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Chance 4 ab / pelvic CT scans all missed symptomatic colon cancer (narrow stools, occaision blood) over three years. Also had sigmoidosopy to 35cm?

Chance 4 ab / pelvic CT scans all missed symptomatic colon cancer (narrow stools, occaision blood) over three years. Also had sigmoidosopy to 35cm?

Hematochexia: Negative sigmoidoscopy and CT sacn of pelvis and Abdomen. May need a full colonoscopy doubt colon cancer for 3 years without significant progression. Other cause like IBD more likely ...Read more

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Is it possible for a woman in her mid 30s to develope colon cancer? Constipation, narrow stool alternating with diarrhea and pain for 4 weeks.

Is it possible for a woman in her mid 30s to develope colon cancer? Constipation, narrow stool alternating with diarrhea and pain for 4 weeks.

Yes, but unlikely: With the changes in your stool and symptoms, it would be very important to get in and be evaluated. It sounds like you need a colonoscopy and stool studies. While waiting for your appointment, you can get a a whole food diet, increase your fiber and take a good probiotic. also make sure you are hydrating well. Make sure you get in - getting your gut healthy again will make you feel much better ...Read more

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29 yo.3 months after having baby stools changed, narrower and more frequent. Been 3 years, still narrow and ribbonlike, frequent, soft. Worried re cancer?

29 yo.3 months after having baby stools changed, narrower and more frequent. Been 3 years, still narrow and ribbonlike, frequent, soft. Worried re cancer?

Narrow stools.: Consistently narrow stools imply rectal narrowing. It could be that you have an apple core lesion of the lower GI tract. Also consider very late onset Hirschsprüng's disease or some in lower GI intestinal blockage. You should see a really good GI doc soon and get a good thorough workup and treatment plan. Good luck. ...Read more

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Do narrow stools always indicate colon cancer?

No: More commonly due to spasm in lower colon. However, sudden change in stool caliber, "pencil thin" stools, cramps, bleeding, nausea, weight loss need evaluation. Ongoing symptoms need evaluation. At the least, this should involve a doctor visit, perhaps other tests. ...Read more

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If 'pencil' stool and 'narrow' stool are signs of colon cancer but exactly how thin of the stool consider as pencil stool or narrow?

If 'pencil' stool and 'narrow' stool are signs of colon cancer but exactly how thin of the stool consider as pencil stool or narrow?

Any change.: Any change in stool caliber warrants investigation. If one's stool has changed in size (narrow), to any degree, a colonoscopy is warranted. This could be an early sign of colon caner. ...Read more

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Yellow narrow stool, but not always narrow with a lot of mucus and sometimes blood. Is this colon cancer?

Yellow narrow stool, but not always narrow with a lot of mucus and sometimes blood. Is this colon cancer?

Bowel caliber/color: Any change in the caliber or color of stool should be evaluated with colonocscopy. ...Read more

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23. F No cancer history. Since 2 days inconsistency in BM. I go once a day but find hard to release. Lil narrow stools. Got gas. No blood Colon cancer?

23. F No cancer history. Since 2 days inconsistency in BM. I go once a day but find hard to release. Lil narrow stools. Got gas. No blood Colon cancer?

Unlikely: A diagnosis of cancer of the intestines at 23 yr of age is very unusual. If you are constipated and there is larger piece of stool blocking passage of stool, this may cause thinner stools. Try to have more fiber in your diet and stay hydrated. ...Read more

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I have been having lower back pain, and pain in my right side. Along with narrow stools quite frequently. Could these be related? Colon Cancer?

I have been having lower back pain, and pain in my right side. Along with narrow stools quite frequently. Could these be related? Colon Cancer?

Um: Colon cancer could be but not the first thing to consider. You could have urinary issues, stones, infection, irritable bowel. I would see your doctor for a full history and physical. Good luck ...Read more

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Would symptomatic colon cancer be missed on 3 separate CT scans? I am only 37 but have had narrow stools and small amounts of blood for past year.

Would symptomatic colon cancer be missed on 3 separate CT scans? I am only 37 but have had narrow stools and small amounts of blood for past year.

Unlikely: Best test would be a colonoscopy for your symptoms or at least a sigmoidoscopy. Usually if a colon cancer had symptoms a year ago those symptoms would have progressed over the ensuing 12 months and by now it would have been obvious by your symptoms and ct scan. ...Read more

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I have had narrow stools for over year with small amount of blood. Had 3 CT of abdomen this year. Think it still could be cancer? Gi doesn't seem conce

I have had narrow stools for over year with small amount of blood. Had 3 CT of abdomen this year. Think it still could be cancer? Gi doesn't seem conce

Colonoscopy?: Did you have a colonoscopy yet? If you haven't then discuss this with your GI docs. That being said, the most common cause of blood in the stools would be hemorrhoids and that may be why the GI doc is not concerned. However, the only way to make sure there is nothing else is to take a look inside the colon with a colonoscopy.
All the best,
ariel. ...Read more

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Narrow stools or pellety stools with mucus for 3 years, 4 Ct scans over time showed diverticulosis (notitis), sigmoidscopy (to 35cm) negative Cancer??

Narrow stools or pellety stools with mucus for 3 years, 4 Ct scans over time showed diverticulosis (notitis), sigmoidscopy (to 35cm) negative Cancer??

Not likely: Please try the following two issues:
1. Drink enough water each day so that your urine is colorless and watery.
2. Take a fiber laxative like Metamucil daily.
Your symptoms may be due constipation and hydration may help. ...Read more

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28 yrs old, male. Do narrow stools always indicate colon cancer or are there other reasons? No blood in stool. Bloating and gas.

28 yrs old, male. Do narrow stools always indicate colon cancer or are there other reasons? No blood in stool. Bloating and gas.

No – but what's up?: And narrowed caliber of stool can be commonly associated with colon carcinoma in any age group. It relates to the relative constriction of the rectum prior to evacuation. Other conditions include rectal stenosis, a sizable rectal polyp, or other conditions serving to narrow and constricted the normal sized stool. Best let a gastroenterologist evaluate you by colonoscopy and anoscopy. ...Read more

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Dx with IBS, 4 Ct scans over last 3 years, just show diverticulosis (not itis), narrow stools or small pebbly stools, mucus, ocaisional blood, cancer?

Dx with IBS, 4 Ct scans over last 3 years, just show diverticulosis (not itis), narrow stools or small pebbly stools, mucus, ocaisional blood, cancer?

Probably not: This is probably not caner, but you may want to report your symptoms to your doctor to see if she thinks a colonoscopy would be helpful. ...Read more

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Been having thin/narrow stools. Clear rectal exam by gp/no blood in stool. Should I fear colon cancer? I'm 39 &had adenocarcinoma insitu of cervix 4yrago

Been having thin/narrow stools. Clear rectal exam by gp/no blood in stool. Should I fear colon cancer? I'm 39 &had adenocarcinoma insitu of cervix 4yrago

Possible lesion: In situ adeno unrelated unless some for of radiation employed that could narrow distal bowel. Narrowing of stool suggests that there is some constriction of bowel causing a narrowing of the lumen and thus the stool. Blood does not have to be present but relying on a gp rectal not satisfactory. Sigmoidoscopy at a minimum and colonoscopy more accepted for this problem. ...Read more

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Other then cancer, what else can cause thin stools?

Other then cancer, what else can cause thin stools?

Thin stool: Based on your question, it seems as though you're asking about stool caliber (diameter) rather than consistency (solid/liquid) when you say "thin". Anything that narrows the diameter of the canal can narrow diameter, often hemorrhoids. If loose stools, diet and infections are common causes. ...Read more

Feces (Definition)

Feces is the product of ...Read more


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