About 10% of perianal abscesses recur after surgery, because perianal abscesses and fistulas are relatively demanding in anorectal medicine in terms of surgical approach and procedure. Because the cause of perianal abscess is the infection formed after the infection of anal glands in the anus, and there are many complex cavities and muscles around the anus. In the process of surgery, preoperative diagnosis and surgery, failure to completely drain the cavity, or failure to find the cavity, can seriously affect the outcome of surgery. In the post-operative healing process, the initial wound may slowly grow forward, usually to about 20 days, the specialist will make a preliminary judgment through the discharge, the patient’s pain sensation whether the surgery is successful or may be to recur. If a recurrence can be detected in the middle of the healing process, another surgery can be performed without delaying the healing time. If it takes a long time to conclude that it is a recurrence, it will have a greater impact and damage to the patient.