Celiac disease can cause diarrhea or constipation. Stools may be greasy, watery, or foul-smelling. The appearance of poop may depend on how much gluten a person consumes. Celiac disease is an ...

Stool changes with pancreatic cancer can include diarrhea, foul-smelling stool, constipation, and changes in stool color. The pancreas is an organ between the stomach and the spine that helps the body ...