Fecal prolapse and exstrophy mostly suggests that there is a foreign body prolapse around the anus, and the possibility of rectal prolapse, internal hemorrhoids and rectal tumors is relatively large, and the specific situation is analyzed as follows: 1. Rectal prolapse: patients mostly have rectal mucous membrane layer or the whole layer of the intestinal wall downward displacement, when the symptom is serious, there will be rectal prolapse during bowel movement. In addition to prolapse during bowel movement, any action that increases the pressure in the abdominal cavity may lead to prolapse of the rectum, such as sneezing, violent coughing and so on. 2. Internal hemorrhoids: patients with mild internal hemorrhoids may only show blood dripping in stool, while patients with severe internal hemorrhoids are often accompanied by internal hemorrhoids prolapsing, and some of them can not be restored by hand, and the anus is turned out during defecation. 3. Rectal tumor: if the rectal tumor is close to the anus, the tumor may prolapse out of the anus when having a bowel movement, and the patient will also feel the anus turning out. To summarize, there are many reasons leading to prolapse of anus. It is recommended that the patient should consult the doctor in time to improve the relevant examination and make a clear diagnosis, and then carry out targeted treatment.