Dehydration is a common complication of diarrhea. Short bouts of diarrhea rarely cause concerns. But long lasting or severe diarrhea can lead to serious complications, especially for children and ...

Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, bacteria, or parasites. Infectious diarrhea can spread by not washing hands ...