Butt swelling and pain, if only occurs in the skin surface, considering the subcutaneous tissue infection; if long in the anus, considering hemorrhoids or perianal abscess and other diseases, according to the cause of the appropriate treatment. 1. Subcutaneous tissue infection: If the subcutaneous tissue infection inflammation, resulting in epidermal swelling and pain, you can first wash with saline, and then apply erythromycin ointment, mupirocin ointment, taking amoxicillin, cefaclor and other antibiotic treatment. After the elimination of inflammation, edema will gradually reduce and gradually return to normal. 2. Hemorrhoids: mainly in the anal opening, defecation is prone to repeated irritation, which leads to redness, swelling and pain in the anal opening, and there are meatballs protruding. It is recommended to adhere to the hot water sitz bath, external application of ma yinglong musk hemorrhoid cream and other medications. If the hemorrhoids protruding can not be returned, the need for surgical treatment. 3. Perianal abscess: If the abscess formation is more serious, it can be directly incised and drained, the purulent secretions cleaned up, drainage of pus, and regular medication change treatment. At the same time can be intravenous levofloxacin, ceftriaxone sodium and other antibiotic treatment. Butt swelling and pain should be timely consultation, clear diagnosis and follow the doctor’s instructions for treatment.