A piece of flesh that comes out of the anus during a bowel movement is what is commonly referred to as a prolapse. Prolapse is a general term that actually encompasses two common possibilities: one is a partial prolapse of the rectum; the other is a prolapsed internal hemorrhoid nucleus. If the prolapse is of the rectal mucosa, it is a rectal prolapse, a condition commonly seen in the elderly and children, and is very closely related to anal laxity. The symptoms occur when stimulated by factors such as difficulty in defecation and prolonged bowel movements. In the case of the elderly the condition will slowly worsen and surgery is recommended. If it is a child, the condition will gradually decrease and may be completely cured after the age of four, and conservative treatment is recommended. If the prolapsed hemorrhoid is an internal hemorrhoid nucleus, it is a prolapsed hemorrhoid. In this case, it is recommended to exercise the anal function, avoid forceful defecation and prolonged defecation, and to send the internal hemorrhoid nucleus back to the anus when it is found to be prolapsed. If the condition is serious, minimally invasive surgical treatment is recommended.