A member asked:

Had bright red blood on stool and toilet paper. had colonoscopy yesterday and it was normal. so where can the bright red blood come from?

2 doctors weighed in across 2 answers
Dr. Steven Chmielewski answered

Specializes in Diagnostic Radiology

Hemorrhoids.: Most common cause of bright red blood, particularly on toilet paper.

Answered 4/14/2013

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Colonoscopy tear?: The colonoscopy could have made a tear in the colon that causes bleeding. Sometimes they took a biopsy that can bleed. However, if bleeding is bright, often "closer to the anus" like hemorrhoid. Need to call the doctor that did the procedure to tell him or her. They can help best. Could be small or big side effect from procedure. The doctor wants to know your experience.

Answered 4/19/2013

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