The time you spend on the pot can offer health clues, says an expert doctor on what's normal, what's not, and why it matters.

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 ...

Shy bowel syndrome, or parcopresis, is an anxiety-related condition that makes it difficult to defecate outside the home. It can trigger physical stress symptoms and lead to avoidance of social ...