Usually high complex anal fistula surgery can be discharged after about one to two weeks. High complex anal fistula surgery is mainly due to the location of the inner mouth is relatively high, the operation is more complex, traumatic, and relatively more complications after surgery, the recovery time is usually longer, the hospital time usually need one to two weeks or so. For patients with some underlying diseases, such as diabetes, tuberculosis, anemia, etc., their wounds are not easy to heal, and the complete healing time after surgery may be relatively longer. Usually need to be hospitalized for about two weeks for observation, and regular follow-up after discharge, to observe the wound healing situation, to avoid false healing and secondary infection. It is recommended that after discharge from the hospital, patients should follow the doctor’s instructions for regular checkups to prevent recurrence of the disease, and if any discomfort occurs, they should go to the hospital for consultation without delay.