Diarrhea in foals is not uncommon; and is often self-limiting, clearing up without treatment. However, diarrhea is a sign that something is not right, and severe diarrhea can dangerously dehydrate a foal. Diarrhea Remedies, Ulcerative Colitis, Signs And Symptoms, Horse Care, Natural Home Remedies, Genetics, Investigations, Horses, Stools