A lump next to the anus can be caused by the following reasons: first, it is a subcutaneous cyst next to the anus, which is a benign lesion. If the gradual increase will affect the function of defecation, there will also be anal pain and swelling, can be excised under local anesthesia, can also be pathologically examined after the operation, to prevent infection, pay attention to perianal hygiene. Secondly, for patients with perianal abscess, it will also be manifested as a mass next to the anus, especially the subcutaneous type of patients, accompanied by fever, obvious pain, mostly secondary to the inflammation of the anal glands, it should be timely to choose the surgery for incision and drainage, and after the surgery, it should also be based on the results of the pathology of the targeted anti-infective treatment, and need to change the medication every day. In addition, it is appropriate to increase the dietary nutrition, attention during the treatment period to the whole liquid diet, to avoid the formation of dry feces, resulting in secondary pollution of the wound, you can also use warm salt water sitz bath method with the treatment.