It is better to have a white wound after anal fistula surgery. Anal fistula surgery is mainly to cut the fistula, the fistula wall necrotic tissue all excision, the incision wound is not suture, so in general the wound white. 1. Wound whitening: the appearance of whitening symptoms, suggesting that the wound is self-healing. Anal fistula mainly occurs in the anorectal abscess ulceration, so that the anal canal and perianal skin, the formation of pus discharge pipe can not be self-healing. Anal fistula surgery involves removing the fistula and the wound turns white after surgery, which is the normal color of the tissue. With the wound healing situation, the color of the wound will deepen and grow normal tissue. 2. Bright red wound: A bright red or reddish wound after surgery may be oozing blood after surgery. If it does not get better after a few days, the wound may be bleeding due to infection and inflammation or frequent friction. You can apply anti-inflammatory ointment around the wound to relieve bleeding, such as erythromycin ointment, clindamycin gel, mupirocin ointment, etc. You can also take a sitz bath with potassium permanganate solution. After anal fistula surgery, you need to take good care of the anal area, keep the anus clean, and go to the hospital regularly to check the healing of the wound.