Anal ectropion is when the anus turns outward during a bowel movement, or when the patient feels that the anus is turning outward, or when the contents of the anus come outward. Anal ectropion is mostly seen in severe hemorrhoids, rectal prolapse, rectal tumors and so on. 1. Hemorrhoids: including internal hemorrhoids, external hemorrhoids, mixed hemorrhoids, hemorrhoids prolapse turned out of the anus, more into a ring, the patient will feel the anus turned out, there is a swelling, foreign body sensation, more accompanied by pain, bleeding and other symptoms. 2. Rectal prolapse is also known as prolapse of anus in medicine: including rectal mucosa prolapse, rectal prolapse, etc. The rectum will turn over to the outside of the anus during bowel movement, and the patient will feel that there is a lump of soft and soft things at the entrance of the anus. 3. Rectal tumor: if it is close to the anal opening, it may prolapse out of the anus during bowel movement, and the patient will also feel anal exstrophy, accompanied by mucus and blood in the stool. If you find the situation of anal ectropion, the patient should carry out the relevant examination in time, and the doctor will give the clear cause of the disease, and then carry out the corresponding treatment if necessary.