Foul-smelling stool has a putrid and rotten odor. Usually, this smell is from foods that people eat. Sometimes though, foul-smelling stool can indicate health problem, such as an infection, an allergy ...

It’s perfectly normal to sometimes see some undigested food in your stool. But if you have other symptoms, it might be a sign of a health problem. Is It Normal to Have Undigested Food in Your Stool?

A stool culture can help your doctor understand and treat problems with your digestive tract, or gastrointestinal tract. There are many reasons why you might experience uncomfortable digestive ...

Brown poop is normal and comes from a pigment called bilirubin. Green poop can happen from eating foods like spinach or from gastrointestinal infections or severe diarrhea. Black, tarry poop can mean ...