The reasons for wiping blood from the buttocks may include hemorrhoids, anal fissure, intestinal polyps, rectal tumors and so on. 1. Hemorrhoids: when the organism suffers from hemorrhoids, it can be realized as blood in stool, and it is still bright red, often attached to the surface of stool, which can be treated by surgical excision or ligation. 2. anal fissure: anal fissure is the longitudinal whole layer of the anal canal skin under the dentate line fissure or formation of ischemic ulcers, the main manifestation of pain and blood in the stool, you can apply drugs to relieve pain. 3. Intestinal polyps: when there are intestinal polyps in the intestinal tract, there may be appeals, which should be perfected by colonoscopy to clarify the location, and polyp treatment under colonoscopy. 4. Rectal tumor: when there is rectal tumor, there may be appealing symptoms, then we should perform rectal diagnosis first, then perfect enteroscopy and pathological examination, and then choose surgical treatment and chemotherapy. Appeals must be consulted in time.