Diarrhea. Although people often think of diarrhea as watery stool, people with celiac disease sometimes simply have stools that are a bit looser than usual - and more frequent. Typically, diarrhea associated with celiac disease occurs after eating.

What does celiacs look like?

In classical celiac disease, patients have signs and symptoms of malabsorption, including diarrhea, steatorrhea (pale, foul-smelling, fatty stools), and weight loss or growth failure in children.