A small red bump around the asshole may be associated with hemorrhoids, perianal abscess, anal fissure, anal fistula and anal papilloma. 1. Hemorrhoids: If the color of the red bumps is purple-red, and the bumps grow bigger and bigger, accompanied by obvious pain, itching and bleeding in the stool and other symptoms, may be hemorrhoids. 2. Perianal abscess: If the small red bumps are hard to press, and can be pushed, the patient has more obvious pain, it is difficult to sit still, may be perianal abscess. 3. anal fissure: if the small red bumps are caused by muscle tissue cracking, stool will produce severe pain, accompanied by the phenomenon of blood, may be anal fissure. 4. anal fistula: this is the formation of perianal abscess without timely treatment, manifested as a lump around the anus, and there is secretion outflow, perianal moist itching symptoms, may be anal fistula. 5. Anal papilloma: If the anal papilla is stimulated by long-term inflammation and feces, it will gradually grow and form anal papilloma, which is manifested as a lump in the anal area. It is recommended that the patient timely consultation, under the guidance of the doctor to do a systematic examination to identify the causes of the disease.