After the wound healing of anal fistula surgery, a small portion of the anus may appear scar, anal itching or even scar infection to form an anal fistula again, but overall the odds are not high. Anal fistula surgery is mainly to remove the fistula tissue, open wound, granulation tissue proliferation to fill the surgical incision process, after surgery, there is a perianal or more scar tissue, scar formation of the early hard texture, there is usually a sense of foreign body in the anus, warm water baths and the passage of time, the scar tissue will gradually soften, and the sense of foreign body disappeared. After the excision of anal fistula, due to the large trauma, oozing more, some patients did not change the medicine in time to clean the trauma, the formation of perianal eczema, the patient will have anal itching symptoms, clean the trauma after itching symptoms significantly reduced. After anal fistula surgery, early scar hard, easy to friction, damage to the skin, the formation of perianal infection again, and may again form an anal fistula may, therefore, after the healing of anal fistula surgical incision, but also to wear loose underwear, to avoid anal friction and keep the perianal clean, usually as long as the doctor’s orders to pay attention to the above matters, generally does not lead to adverse events.