What causes vomiting and diarrhea?
Vomiting (throwing up) and diarrhea (frequent, watery bowel movements) can be caused by viruses, bacteria and parasites. Foods that are hard to digest (such as too many sweets) and undercooked (still partially raw) meat or fish can also cause vomiting and diarrhea.
Written by familydoctor.org editorial staff
Reviewed/Updated: 11/10
Created: 01/99