Medically reviewed by Robert Burakoff, MD Key Takeaways Watery diarrhea can be caused by viruses, bacteria, and parasites. It's important to consult a doctor if a newborn has diarrhea because it can ...

Whether you've come down with a virus or are experiencing the gastrointestinal side effects of new medication, diarrhea can be equal parts exhausting and dehydrating. The good news is that "the runs" ...