Anal prolapse is in a sense a prolapse of internal and external hemorrhoids and mixed hemorrhoids causing hemorrhoids, which also belong to anal canal prolapse. Prolapse is more frequent with external hemorrhoids, especially external hemorrhoids partly form varicose veins heavier than internal hemorrhoids, and this condition is mostly manifested as anal canal prolapse after prolapse. In actuality or due to the fact that internal hemorrhoids are small and external hemorrhoids are larger, external hemorrhoids prolapse is more fully expressed and also hemorrhoid prolapse. Hemorrhoid prolapse and anal canal prolapse cannot be separated pathologically and physiologically, and the treatment is generally unified with hemorrhoid surgery to resolve the anal canal prolapse, i.e., to completely remove the prolapsed hemorrhoid tissue, and the anal canal prolapse can be treated.