The probability of not finding an internal opening in perianal abscess surgery is not supported by clear and reliable data. Most perianal abscesses are caused by sinus infections, which can form an opening in the sinus, but a small percentage of perianal abscesses are caused by localized skin infections in the perianal area, and these perianal abscesses usually do not have an opening. There is no accurate research data on the probability of not finding an opening during surgery for perianal abscesses. Usually, perianal abscesses with an internal opening are treated with a single radical incision. For perianal abscesses without an opening, incision and drainage can provide good results. For the early no pus perianal abscess, can first take amoxicillin capsules, cefuroxime tablets and other anti-infective drugs under the guidance of the doctor, some patients can get better. If the perianal abscess has suppurated, surgery is required.