Medically reviewed by Robert Burakoff, MD Key Takeaways Watery diarrhea can be caused by different kinds of infections, as ...
Diarrhea usually resolves in a couple of days, but it can sometimes continue for weeks. Persistent diarrhea can be a sign of an allergy or a chronic condition. It may also occur after an infection.
Chronic diarrhea in infants who eat solid food is defined as frequent, loose, watery bowel movements for at least 4 weeks. It can lead to dehydration, malnutrition, and other serious complications.