Medically reviewed by Robert Burakoff, MD Key Takeaways Diarrhea is often caused by infections, including bacterial, viral, or parasitic.Food poisoning can trigger diarrhea if you eat food ...

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 ...

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 ...