There is a small meatball in the buttocks, may be related to sebaceous cysts, hemorrhoids, polyps, perianal abscess and other conditions, not necessarily all cases need surgical treatment, should be specifically analyzed. 1. sebaceous cysts: sebaceous cysts surgery is mainly through surgery, the cyst tissue completely removed. Smaller cysts can be removed directly through small incisions, while larger cysts should be considered for surgical removal. 2. Hemorrhoids: If the hemorrhoids are relatively minor, surgical treatment is not considered for the time being. For patients with aggravated pain and severe redness and swelling of hemorrhoid nuclei, internal hemorrhoids can be considered using internal hemorrhoid ligation, external hemorrhoids can be peeled through external hemorrhoidal stripping, and mixed hemorrhoidal patients can use external peeling and internal ligation. 3. polyps: if intestinal polyps are more serious and cannot be retracted on their own, polypectomy can be considered for treatment. 4. Perianal abscess: once the perianal abscess is formed, it needs timely surgical treatment. During the surgery, the abscess needs to be cut open, and the decayed tissues and pus inside will be cleaned up. It is recommended that patients seek timely medical attention to clarify the cause of a small ball of flesh on the buttocks, and then according to the severity, follow the doctor’s instructions to take the appropriate method of treatment.