Anal fistula hanging thread skin band off is a normal phenomenon, after the skin band off, the local wound exposure needs to be strictly cared for to avoid infection, in order to ensure that the wound is completely healed. Anal fistula of the skin band off, the wound is exposed, improper care, prone to infection and other complications, so the daily need for regular disinfection of the wound, with cotton swabs to remove secretions, povidone-iodine disinfectant wipe, and regular medication changes until the wound epidermal cover, complete healing. The wound of anal fistula is usually deep and large, during the recovery period, it needs to be treated with medication under doctor’s guidance when necessary, such as raw muscle ointment, etc. Some antibiotics, such as erythromycin ointment, can also be used prophylactically to prevent infection. After the anal fistula band is detached, if the wound appears pus or other clinical manifestations, you need to consult a doctor in a timely manner, under the guidance of the doctor to carry out standardized treatment in order to ensure that the prognosis is good, to avoid infections and so on, leading to deterioration of the situation. After anal fistula surgery, patients should actively cooperate with the treatment, regular review, if there is discomfort and doubt can consult the attending physician, early treatment, in order to promote the normal recovery after surgery.