This tends to occur if tumors are present near the end of the colon or if they line the entire inside of the colon, which narrows whatever stool passes through, Cecchini explained.

The colon needs to be as clear of stool as possible. When there is no stool in the colon, the walls on the inside can be ...

Hemorrhoids and colon cancer can both cause symptoms of rectal bleeding, but diagnosis and treatment are different. It's ...

Speaking about your bowel movements can be embarrassing, but gastroenterologists explain the significance and key indicators ...