The surgical methods for perianal abscess vary depending on the location of the lesion. If it is a simple ischiorectal fossa subcutaneous abscess, a one-time incision and drainage surgery is generally used. The local wound is debrided and necrotic tissue is removed. After trimming the wound, it is important to maintain clear drainage of the local wound. Local application of gauze strips for compression and drainage treatment can be used. If the abscess is in the ischioanal fossa or the pelvirectal space, considering that the location of the lesion is deep, a one-time incision and seton drainage radical surgery may be required for the perianal abscess. Post-surgery, thorough disinfection and drainage of the local wound are also necessary.