One year after the anal fistula surgery, there is still a tingling sensation, may be due to scar proliferation, infection, recurrence and other factors, the specific circumstances need to be judged under the guidance of the doctor. 1. Scarring: It may be due to the patient’s prolonged postoperative inflammatory stimulation, which leads to granulation tissue proliferation. The appearance of scarring will lead to poor local blood circulation, resulting in the phenomenon of tingling. 2. Infection: patients do not pay attention to personal hygiene after surgery, resulting in eventual infection, due to the stimulation of the inflammatory medium will make the patient appear tingling phenomenon. 3. recurrence: anal fistula patients in one year after surgery and tingling, not exclude is due to the recurrence of the disease caused by, it is recommended to go to the hospital in a timely manner for further examination. The patient in a year after surgery and tingling, generally does not belong to the normal phenomenon, it is recommended to go to the hospital in time to check, to avoid delaying the aggravation of the condition.