Failed anal fistula surgery is usually not detected until about 20-30 days. For the less serious, the patient wound wound is very small, is a subcutaneous fistula as well as low anal fistula, etc., then the patient may recover in about 20 days. The disease is more serious, the patient wound trauma is large, is a high anal fistula, the patient may be about 30 days to recover, then to be recovered after the condition can be observed whether the anal fistula surgery failure, so the anal fistula surgery failure is generally 20-30 days to find. If the patient more than 30 days did not recover, in the anal margin of the fistula around and there is secretion, repeated swelling, localized swelling, may be accompanied by some heat and pain and other discomforts, encountered such a situation, it is considered that the anal fistula recurrence, or surgical failure. If the patient’s anal fistula surgery failed, it is recommended to go to the hospital in a timely manner, after a clear diagnosis, actively cooperate with the doctor to take appropriate treatment measures to avoid aggravation of the condition.