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Doctor insights on: Colon Cancer Stool Shape

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My dad (50 years old) has had changes in his stool shape. What are the chances of changes in stool shape being colon cancer?

My dad (50 years old) has had changes in his stool shape. What are the chances of changes in stool shape being colon cancer?

Possible: The clinical indications of a tumor growing in the distal bowel or simoid/rectosigmoid region is the appearance of blood, or narrowing of stool. Since the terminal large bowel functions to completely remove water from the GI tract, the initial site being cecum/rt. Colon, if a tumor is obstructing lumen, the stool becomes narrowed. One requires colonoscopy to confirm source of problem. ...Read more

Dr. Barry Rosen
4,341 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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I had polyuria now chronic prostatitis and now my stool has a shape to it is it due to large prostate or maybe had colon cancer all along? I'm 26

I had polyuria now chronic prostatitis and now my stool has a shape to it is it due to large prostate or maybe had colon cancer all along? I'm 26

Probably not: You have multiple problems and concerns that should be evaluated by your physician. Colon cancer would be very unlikely, but the other problems need to be taken care of. ...Read more

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Is green stool a sign of colon cancer?

Not specifically: Bowel movement color is not a factor to watch for colon cancer unless you see blood. See a doctor for an examination. ...Read more

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Is foul smelling stool from colon cancer?

Is foul smelling stool from colon cancer?

Probably not, but...: There can be many reasons for changes in the odor of stool. Diet and medications are just a few. If there is a change that seems to persist for longer than a week or two, see your doctor for a discussion. ...Read more

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How can we find colon cancer through stool test?

How can we find colon cancer through stool test?

Colon cancer: Good wikipedia question. Look for blood when you poo. Test poo for blood and can test for cancer cells in stool with DNA testing. ...Read more

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Black and red dots in stool. Could it be colon cancer?

Black and red dots in stool. Could it be colon cancer?

See a doctor: Without seeing what you are describing it is very hard to know what you have. Diet is the most common cause for the color of bowel movements. Any changes in the bowel function or bowel habits should be evaluated by your doctor. ...Read more

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Does having pencil thin stool mean I have colon cancer?

Does having pencil thin stool mean I have colon cancer?

For how long?: Anybody can pass a thin one from time to time. If this persists for more than a few days, go in and get a rectal from your physician. It's more worrisome to have the caliber decreasing gradually over time. ...Read more

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Which stage of colon cancer involves blood in the stool?

Which stage of colon cancer involves blood in the stool?

Bleeding is not: One of staging criteria for colon cancer. Blood in stool is a relatively advanced sign of colon cancer, as is pain. You need a colonoscopy for early diagnosis of colon cancer. ...Read more

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Colon cancer. Do you always have to have blood seen in your stools?

Colon cancer. Do you always have to have blood seen in your stools?

No: However, blood in stool should definitely be a flag. That is why colonoscopy is being recommenced as a screening tool....To find cancer before they cause obstruction or bleed enough to be detected. Screening criteria are always changing with the research. Your doctor will guide you. ...Read more

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I have blood in my stools sometimes, does that mean I have colon cancer?

I have blood in my stools sometimes, does that mean I have colon cancer?

No, that is just one: Possiblity. Most likely is hemorroids, then infections, inflammatory bowel disease, diverticulosis, angiodysplasia. But you are right, the most deadly is cancer, so have it checked out. ...Read more

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Started having pencil thin stool. I'm really scared! Do I have colon cancer?

Started having pencil thin stool. I'm really scared! Do I have colon cancer?

Have it checked: Change in bowel movements can be a sign of colon cancer. It can also be a sign of other non-cancerous conditions of the colon as well, like diverticulitis. If this is a change for you, I would recommend going to a gastroenterologist and having it checked. ...Read more

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Can you have colon cancer that causes flat stools two years after clean colonoscopy?

Can you have colon cancer that causes flat stools two years after clean colonoscopy?

CA 2 y postcolonsocp: Possible if they missed one before or if you have strong family Hx of colon cancer. Need more details. ...Read more

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How accurate Is the schebo stool test in detecting colon cancer with present symtoms?

How accurate Is the schebo stool test in detecting colon cancer with present symtoms?

Not gold standard: It's a pretty good screen but if you're having symptoms, you need to get 'scoped. ...Read more

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How thin does a ribbon stool have to be in order to be a concern that it's colon cancer?

How thin does a ribbon stool have to be in order to be a concern that it's colon cancer?

Pencil thin stool: Pencil thin stools should generally be like that. However any change in bowel habits or bleeding should prompt evaluation by your pcp gastroenterologist or colorectal surgeon. ...Read more

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How can we find colon cancer through stool test?? What are the symptoms of colon cancer??

How can we find colon cancer through stool test?? What are the symptoms of colon cancer??

Here are few thought: Colon Cancer is often a silent disease in its early stages. That is why a colonoscopy examination is advised at the age of 50 years.
Some people will present with rectal bleeding (Blood in the stools). Abdominal pain and anemia related symptoms (fatigue) can also be a signal of colon cancer. Stool tests (2 of them) are also available through your PCP. ...Read more

Dr. Andrew Seibert
13 Doctors shared insights

Colon (Definition)

The colon is another term for the large intestine. This is the final portion of the digestive system, responsible for absorbing water and storing stool before evacuation. It is divided into sections described as cecum; ascending, transverse, descending and ...Read more


Dr. James Chapman
12 Doctors shared insights

Colonic (Definition)

This is a combining term referring to some condition, treatment or disease of the colon. Such as colonic enema, colonic ...Read more