A member asked:

Streak of bright red blood on stool. some pain after bowel movement. what could cause this? worried about cancer.

5 doctors weighed in across 3 answers

Hemorrhoids: is probably the cause other possiblilites are anal fissure, cancer or the rectum. See your doctor.

Answered 6/30/2016

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Anal fissure: What you described is consistent with anal fissure. It is a linear ulcer in the anal canal. Try taking a laxative so that your stool is soft preferably, very soft. You may try a topical, over the counter preparation for pain. If after a couple of weeks of soft stools, the symptoms persist, please consult your doctor.

Answered 9/29/2016

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Dr. Jerome Zacks answered

Specializes in Cardiology

Appropriate question: Blood in or on the stool, or black tarry stool are always of concern. However, in a young person with a streak of blood on the surface of the stool, the most common causes are a fissure or hemorrhoid, both of which can cause pain as well. Cancer is less common in young people. Other causes are also less common. It's best to see your doctor for a careful exam to determine the cause in your case.

Answered 9/13/2014

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