Sometimes, people have poop that's so dark it looks black. It might also have a sticky consistency, like that of tar. If your poop is black, it might be due to a change in your diet, a new ...

Holding in poop on occasion is not harmful, but doing this often can lead to constipation, impaction, inflammation, and more severe complications. People who hold in their poop too often may start ...

Enzymes make bile acids out of cholesterol. The acids turn into bile salts when in contact with sodium or potassium ions in your body. When Is Green Poop a Cause for Concern? Green poop is ...