The most common types of small extra-anal meatballs are dermatomes or external hemorrhoids. First of all, if pain occurs, it is caused by external hemorrhoids that may cause venous thrombosis in the perianal area. There are also dermatomes, and if an infection occurs, or a localized perianal abscess forms, pain can also occur. Therefore, if a small mass of flesh outside the anus occurs, and painful symptoms occur, it is recommended to go to the Department of Anorectal Surgery. The cause of the disease can be clarified through a face-to-face examination and anal examination. If it is just a simple inflammation, anti-inflammatory treatment and symptomatic treatment will be fine. If there are external hemorrhoids, and the situation is serious, may need surgical treatment. Therefore, the presence of a small mass of flesh with pain in the anus is recommended to go to the hospital.