Black, tarry poop with an unusually bad smell is often a sign that you have bleeding in your esophagus, stomach, or the top part of your small intestine. The blood turns black and tarry when it's ...

After three or four months, your yellow-green complexion has turned brownish-black because your blood vessels have deteriorated to the point that the iron inside them spills out, becoming brownish ...

If people have blood in the stool, they may benefit from speaking with a doctor. Various foods can turn a person’s stool black, including blueberries, licorice, and blood sausage. Certain ...