Diarrhea is defined as bowel movements that are more frequent or more watery than usual, most episodes of diarrhea usually clear up on their own in a few days. But for more serious episodes, medical treatment is occasionally necessary.
Things that may irritate the digestive tract and lead to diarrhea include harmful bacteria or viruses (present during a bout of food poisoning or stomach flu for instance) or medications (especially antibiotics). Certain foods (such as spicy or fatty foods or dairy products) can cause diarrhea in some people. In others, stress and anxiety may lead to diarrhea.
Diarrhea is your body's response to an irritant (such as bacteria or a certain type of food) in your digestive tract. The irritant may lead to more water being secreted from the body into the digestive tract. The colon can't absorb all this excess liquid, so the stool stays loose and watery. This soft stool moves more quickly through the digestive tract, so bowel movements may happen more often. Cramps may also occur if the muscles of the colon contract irregularly.
Symptoms of Diarrhea are: