There are many causes of perianal masses, and their treatments are respectively as follows: 1. The more common is perianal abscess, the vast majority of perianal abscesses are secondary to perianal infection, often opening in the posterior or lateral hypodermis of the anus, the main symptom is persistent throbbing pain in the perianal area, systemic infection symptoms are not obvious, the lesion lesion is obviously red and swollen, there are hard nodes and pressure pain, abscess formation can have a sense of fluctuation, puncture to draw pus, sometimes The diagnosis should be confirmed by anal examination and ultrasound examination. After the development of perianal abscess, non-surgical treatment can be started, including antibiotic application, selection of antibiotics effective against Gram-positive bacilli, warm water sitz bath, local physical therapy, oral laxative or liquid paraffin to reduce pain during defecation. If the pain cannot be relieved after conservative treatment, surgery should be performed in time, and perianal abscess incision and drainage is feasible; 2. A mass at the anus may also be a mixed hemorrhoid or external hemorrhoid with thrombosis, especially a thrombosed external hemorrhoid, which will manifest as a purple-colored, hard mass around the anus, which is painful to touch. The thrombosed external hemorrhoids should be treated surgically in time, such as thrombectomy.