The most common type of hard mass in the perianal area is a perianal abscess in its limited stage or a subcutaneous fistula formed by an anal fistula. There is also a case of perianal subcutaneous soft tissue masses, including perianal cysts or hidden hair sinuses, which usually require surgical treatment.1. For limited perianal cysts or hidden hair sinuses, excision can be performed under local anesthesia, preferably with complete debridement of the lesion, intermittent suturing after thorough hemostasis of the surgical wound, and regular postoperative dressing changes.2. For perianal abscesses or anal fistulas, diseases such as perianal abscesses or fistulas should be The procedure should be carried out in a timely manner with incision and drainage, and a detailed investigation should be carried out to see if there is a combination of internal orifices and, if necessary, a hanging therapy. After the surgery, each time you defecate you should promptly wash and insist on applying salt water or potassium permanganate dilution every day to take a sitz bath to promote the healing of the trauma.