Intestinal mucosa detachment refers to the process of rectal mucosa or even part of the anal canal shifting downward and protruding from the anus, it does not mean that the intestinal mucosa detachment will be discharged to the outside of the body. Normal intestinal mucosa is light pink in color, and intestinal mucosa detachment can be accompanied by mucus and blood stools or pus and blood stools. The symptoms of intestinal mucosa detachment are mainly recurrent abdominal pain, diarrhea, accompanied by acute and severe (discomfort in the lower abdomen, wanting to relieve the stool, and a sense of incomplete defecation), mucus stool, pus and blood, and at the same time, there will be rectal prolapse out of the anus, localized edema, anal pain, etc., and the course of the disease is relatively slow, often lasting several months or even years. The main manifestations of the patient is abdominal pain, diarrhea, mucus, pus and blood stools, examination of the rectal mucosa can be seen protruding from the anus, this disease is generally related to the patient’s eating habits, mainly due to eating stimulating food, bacterial or viral infections. It is recommended to go to the regular hospital in a timely manner, under the guidance of the doctor for treatment, do not self-medication in order to avoid causing adverse effects.