Internal hemorrhoids are a common disease that mostly occurs in young people, especially some people who are sedentary and squatting, and they can have symptoms such as blood in the stool and anal pain, in fact, rectal prolapse also has these symptoms and can be easily confused with internal hemorrhoids. A partial or full downward displacement of the rectal wall is called rectal prolapse, commonly known as prolapse. The partial downward displacement of the rectal wall, that is, the downward displacement of the rectal mucosa, is called mucosal prolapse or incomplete prolapse; the full downward displacement of the rectal wall is called complete prolapse. If the downward migration of the rectal wall is within the rectal lumen of the anal canal, it is called internal prolapse; downward migration to the outside of the anus is called external prolapse. Rectal prolapse mostly occurs in children and middle-aged and elderly women. Rectal prolapse in children is mostly mucosal prolapse, which usually heals spontaneously by the age of 5 years. Complete rectal prolapse in adults is uncommon. Repeated prolapse of the rectum can lead to anal incontinence due to nerve damage in the pubic area, and there is a risk of rectal ulceration, bleeding, stricture and necrosis, requiring surgical treatment. Why does prolapse occur? The cause of prolapse (rectal prolapse) is not fully understood and is thought to be related to a variety of factors. 1, anatomical factors stunted children, malnourished patients, old and weak people, easy to appear weak anal raphe and pelvic floor fascia; small bend of the sacrum in children, too straight; surgery, trauma damage to the perirectal muscle or nerve and other factors can weaken the perirectal tissue to rectal fixation, support role, rectal easy to prolapse. 2, increased abdominal pressure such as constipation, diarrhea, prostate hypertrophy, chronic cough, urinary difficulties, multiple deliveries, etc., often resulting in increased abdominal pressure, pushing the rectum down prolapse. 3.Other internal hemorrhoids and rectal polyps often prolapse, pulling down the rectal mucosa and inducing mucosal prolapse. What are the symptoms of prolapse? The main symptom is the prolapse of a mass from the anus. At the beginning, the mass is small and comes out during defecation and resets itself after defecation. Later, the mass will prolapse more frequently, increase in size, and need to be held back in the anus by hand after defecation, accompanied by incomplete defecation and a feeling of falling. Eventually, it may prolapse when coughing, exerting or even standing up. With the aggravation of prolapse, it causes different degrees of anal incontinence and often mucus flow, resulting in perianal skin eczema and itching. Constipation often occurs due to difficulty in rectal evacuation, and stools become more frequent and sheep stool-like. The mucous membrane is eroded and blood flows out when it breaks down. How to distinguish prolapse from internal hemorrhoids? 1. Blood in stool Early internal hemorrhoids are mostly painless blood in stool, sometimes dripping, sometimes spraying or sticky blood on hand paper; while prolapse is mainly symptomatic of anal canal and mucous membrane prolapse, rarely blood in stool. 2.Pain Early internal hemorrhoids are generally painless, but in the late stage, severe pain occurs after impaction; while prolapse is sometimes accompanied by severe pain. 3.Mucus Internal hemorrhoids often have symptoms such as anal dampness, while prolapse often has mucus overflowing from the anus, and the two symptoms are more similar. 4.Prolapse Internal hemorrhoids prolapse the nucleus of hemorrhoids, usually stage I internal hemorrhoids do not prolapse, only stage II and III internal hemorrhoids prolapse the nucleus of hemorrhoids, and sometimes the phenomenon of impaction occurs in late stage; while prolapse prolapse the rectal mucosa, anal canal and rectum, and late stage prolapse can reach more than ten centimeters.