Anal superfluous organisms may be caused by hemorrhoids, anal papilloma, anal canal polyps, perianal warts and other diseases. 1. Hemorrhoids: are more common anal redundancy, mainly because of perianal venous reflux obstruction, varicose veins and the formation of venous masses. As the volume continues to grow, it can protrude out of the anus to form anus redundancy, with blood in the stool, prolapse and other symptoms. 2. Anal papilloma: it is a columnar structure in the anal sinus, usually in sinusitis or anal papilla breakage, inflammatory reaction, resulting in its proliferation of adenomatous changes, but also can form anal redundant organisms, hard to the touch, accompanied by itching, blood in stool and other symptoms. 3. Polyp of anal canal: under the inflammatory stimulation of stool, it leads to adenomatous hyperplasia of mucosal epithelium of anal canal, and the formation of anal superfluous organisms. 4. Perianal warts: usually due to human papillomavirus infection caused by a sexually transmitted disease, often with a history of unclean sex, the perianal papillary growths, from small to large, single to multiple, gradually growing, accompanied by itching or bleeding symptoms. Formation of anal superfluous organisms. The appearance of anal superfluous organisms, it is recommended to go to the hospital as soon as possible for examination, a clear diagnosis, give targeted treatment, to avoid delaying the condition.