DEAR DOCTOR K: My young son had rectal bleeding caused by a colon polyp, which the doctor surgically removed. Why did he develop a polyp? Can we do anything to prevent more polyps from forming?
DEAR READER: Colon polyps are growths of tissue inside the colon (large intestine). I've put an illustration of a colon polyp below. Most people think of colon polyps as a problem only for adults, but children also get colon polyps. In fact, they are a relatively common cause of bleeding from the rectum in children.