Diarrhea (In Adults and Children)
Diarrhea - loose, watery stools occurring more than three times in one day - is a common problem that usually lasts a day or two and goes away on its own without any special treatment. However, prolonged diarrhea can be a sign of other problems. People with diarrhea may pass more than a quart of stool a day. Diarrhea can cause dehydration, which means the body lacks enough fluid to function properly. Dehydration is particularly dangerous in children and the elderly, and it must be treated promptly to avoid serious health problems. Causes, treatment, and prevention are discussed. Revised and updated 2011.