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Doctor insights on: Rectal Cancer Causes Thin Stool

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Can you provide an exhaustive list of all possible causes of crescent-shaped thin stool (excl. Rectal cancer b/c i just had lar a month ago)?

Can you provide an exhaustive list of all possible causes of crescent-shaped thin stool (excl. Rectal cancer b/c i just had lar a month ago)?

Short list: Assuming your anastomosis is fine and not stenotic the most common cause is your muscles around your anal canal (schinter muscles and puburectalis) are not relaxing appropriately during defecation (animus). The best test for this is a voiding proctogram but would wait 6 to 8 weeks from your surgery (lar) to have this done. ...Read more

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Dr. Barry Rosen
4,214 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 lar for rectal cancer 5mo ago. Now, I have a persistent groove line in my stool (same size as before surgery). Normal cea. What's the cause?

Not sure: There is any significance to a groove, but you may discuss this with your surgeon. The procedure uses a circling stapling device to bring the resected ends together, occasionally this is done by hand. Control of your bowels, lack of blood all positive signs. Does not sound like cancer. Talk to the surgeon about your concern. ...Read more

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Can you tell me how is rectal cancer affected by stool?

Can you tell me how is rectal cancer affected by stool?

Rectal cancer: Cancer is very fragile. Anything hard enough rubbing on the cancer can cause bleeding. If one has rectal cancer- it can cause blockage / cause constipation/ change in bowel movement. And if a hard stool rubs on the large cancer tissue-the stool may cause the cancer to bleed. ...Read more

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I'm 25 could I have rectal cancer? I'm scared and have no health insurance. I have no blood in my stools maybe its hemeroids?

I'm 25 could I have rectal cancer? I'm scared and have no health insurance. I have no blood in my stools maybe its hemeroids?

Not sure: You say you have no blood in your stool so what are your symptoms? If you are having rectal pain, pressure in the rectal area, changes in your bowels or weight loss then you should see your doctor. Rectal cancer in your age group is not common but the above symptoms need to be checked. ...Read more

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I've had blood in my stool for years. I've had hemorrhoid problems for a while but it has always been bright red. Chance of rectal cancer?

I've had blood in my stool for years. I've had hemorrhoid problems for a while but it has always been bright red. Chance of rectal cancer?

Low: Why have you not gotten treated for hemorrhoids? You can lose enough blood from these to become anemic. Please see your doctor for treatment and s/he can check you for rectal cancer as well. ...Read more

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I am having a CT colonography due to chronic constipation & pencil stools. Will this show IBD, such as Crohn's/Colitis as well as colon/rectal cancer?

I am having a CT colonography due to chronic constipation & pencil stools. Will this show IBD, such as Crohn's/Colitis as well as colon/rectal cancer?

CT resolution : CT examination illustrates the anatomy of a part of the body, the lay of the land. The functionality of the lining of the wall is best illustrated by a colonoscopic exam. Talk to your doc about why he is doing any given exam on you. ...Read more

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Is colo-rectal cancer caused by generic defect leading to polyps?

Can be: A genetic disorder, adenomatous polyposis coli (apc) is an inherited abnormality and people who inherit it, develop multiple polyps in colon and almost invariably develop colon cancer. Only a very small proportion of the colon cancers are due to apc gene. ...Read more

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Does stage 3 rectal cancer cause serious longterm effects on continence?

Does stage 3 rectal cancer cause serious longterm effects on continence?

Depends: On how low in the rectum the cancer is and what modes of treatment are proposed or undertaken. If it is low it may indeed affect continence and a permanent colostomy may be indicated. ...Read more

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What is grade 1 rectal cancer?

What is grade 1 rectal cancer?

Grading: Grading depends on microscopic picture of cancer. Lower the grade like grade 1 better the prognosis. But grading is not the only thing determine prognosis. ...Read more

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Dr. Eric Kaplan
171 doctors shared insights

Rectal Cancer (Definition)

Cancer by definition is the growth in size and number in an unregulated manner of a cell line that has developed a mutation. The mutation is passed through the offspring which accumulate more and more mutations. The defining factor is that the cells act immortal as compared to normal cells that have a programmed lifespan. In the rectum this can occur in the cells that ...Read more


Feces (Definition)

Feces is the product of ...Read more