Medically reviewed by Robert Burakoff, MD 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 ...

This will usually cause your poop to look tarry and black, Dr. Akinyeye says. “Bleeding from your GI tract, when it comes in contact with digestive enzymes, ...

Discover the top causes of black poop like diet, supplements, and gut health conditions, plus the best treatment options according to gastroenterologists.

Gastroenterologists break down the biggest potential causes of black poop, plus what to do next. ... But if it’s black and tarry, doctors say it’s definitely not something to ignore.