The phenomenon of the exhaustion of stool is mostly caused by the following reasons: first, inflammation in the intestine, repeated stimulation of bacteria leads to inflammation in the intestine, which can easily lead to abdominal pain and diarrhea symptoms, which can seriously lead to impaired function of the lower gastrointestinal system, resulting in the weakening of their own control of the anus and bringing out stool during exhaustion. Second, the anal sphincter relaxation, a variety of reasons for the anal sphincter relaxation, including repeated bacterial infection and central nervous control ability is reduced, resulting in the anal closure is not strict, when there is gas outflow will bring out feces and intestinal secretions. Third, perianal diseases, including hemorrhoids, rectal polyps, etc., can cause the symptoms of anal closure is not strict, resulting in the phenomenon of feces brought out when the exhaust.