Frequent hand-washing with soap and warm water is the best way to prevent diarrhea. This is especially important if a person has been exposed to anyone who has diarrhea or has used a public restroom. It is often hard to prevent diarrhea in children who attend day care. However, frequent hand-washing at the day care center may reduce the risks of diarrhea.
To help prevent traveler's diarrhea it is recommended that individuals avoid contaminated water and food. They should also avoid uncooked vegetables or fresh salads.