Perianal abscess surgery for a month and still have some pain, may be a normal phenomenon after surgery, or may be caused by postoperative re-infection. Perianal abscess is an acute purulent infection that occurs around the perianal tissues such as the anal canal, anus and rectum, mostly due to bacterial infection. Perianal abscess is the lesion precursor of anal fistula, as the condition progresses perianal abscess or gradually form anal fistula. Common treatments for perianal abscess are medication, such as cephalosporin antibiotics, potassium permanganate solution sitz baths and surgical treatment. The common form of surgery is incision and drainage of the perianal abscess. One month after the surgery of perianal abscess, the general patient wound gradually healing without obvious pain, but some patients healing slower, such as elderly patients, diabetes, anemia, etc. Patients may still have pain one month after the surgery, this is a normal phenomenon after the operation, you need to continue to change the medication to observe the changes in the condition. In addition, there is a part of the patient due to or after the operation did not pay attention to health care and timely change of medication and so on leading to perianal abscess recurrence or the original lesion next to the recurrence of the phenomenon, there will be a month after the operation and the pain symptoms, at this time, we should go to the hospital in a timely manner to the clinic or re-examination, give the relevant ultrasound and other examinations, to determine the cause of the disease, and follow the doctor’s instructions to give treatment. Perianal abscess surgery for a month still some pain, it is recommended that patients go to the hospital as soon as possible to avoid aggravation of the condition.