There is a lump of flesh in the anus with symptoms of bleeding. The main consideration is related to hemorrhoids, anal fissure, dermatitis, oncological diseases and so on. 1. Hemorrhoids: especially external hemorrhoids, which can lead to thrombosed external hemorrhoids, a meatball in the anus, accompanied by pain, bleeding and other uncomfortable symptoms. 2. Anal fissure: this disease can lead to patients with anal pain, bleeding and other symptoms. If not intervened in time, anal abscess can appear, and then appear to have the symptoms of meatballs. 3. Dermatitis: The anal area is infected, resulting in localized congestion and redness. If the disease is serious, bleeding symptoms can occur. The local skin is constantly stimulated by inflammation, and abnormal hyperplasia can also occur, appearing as a meatball bulge. 4. Tumor: such as papilloma, grow to a certain extent, will be out of the anus during defecation, the symptoms of meatballs, touch, hard, smooth. This symptom may also be related to other diseases such as anal warts. It is recommended to seek medical examination as soon as possible to confirm the diagnosis of the condition, and then carry out treatment under the guidance of the doctor.