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 ...
A new study, published in GIE: Gastrointestinal Endoscopy, the scientific journal of the American Society for Gastrointestinal Endoscopy, reports that the diagnostic yield of colonoscopy to ...