Foul-smelling stool on its own is usually not a sign of cancer. Generally, it comes from diet or harmless digestive issues.
Medically reviewed by Qin Rao, MD Grey poop can be caused by liver issues or gallstones blocking bile flow.It's important to ...
Black poop can be caused by foods or medications. Stool may also be black becasue of blood in the digestive tract, known as melena. A small drop of red blood is usually due to minor hemorrhoids but ...