Bleeding in the gastrointestinal tract and colon cancer can cause black poop (also known as melena). But black stool doesn't always mean there is an underlying health concern. Dark-colored foods, iron ...

Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...

Dear Dr. Gott: I've recently used Pepto Bismol to counteract diarrhea and abdominal upset. Following this, my stools were black. I know this is often a sign of intestinal bleeding. Should I look into ...

At this point in life, you likely have a good idea of what your average bowel movements look like. So if you happen to notice they’re darker than usual, it’s understandable to wonder, “Why is my poop ...

It can be alarming when you go to the toilet for your daily business and notice that the color of your stool has changed. If you’ve introduced a new vitamin, mineral, or other type of supplement into ...