Anal fistula is called anal leakage in Chinese medicine, Chinese medicine treatment of anal leakage is generally based on surgical treatment, internal treatment is mostly used before and after surgery in order to strengthen the body, reduce symptoms, control the development of inflammation, commonly used surgical therapies are hanging line, incision, incision and hanging line therapy combination. Anal leakage is mostly due to carbuncle around the anus (a kind of poisonous sore, occurring on the surface of the body, limbs, internal organs of the acute purulent disease) ulcerated for a long time without healing; or by the development of infection in the inner wall of the anorectal tube and intestines. 1. Traditional Chinese medicine: Damp-heat underflow (dampness and heat invading the intestines, bladder, pubic area, lower limbs, etc.) should be treated by clearing away heat and removing dampness, and it can be treated with Ermiao Pill combined with Dioscorea villosa plus or minus; positive deficiency and evil fetishization should be treated with Toli transmitting toxin and it can be treated by Toli disinfecting powder plus or minus; yin fluid deficiency should be treated by nourishing yin and clearing away heat and it can be treated by Artemisia sinensis and turtle turtle shell soup plus or minus. 2. Hanging thread therapy: applicable to the distance from the anus within 4cm, with internal and external mouth of the low anal leakage; also as a complex anal leakage incision therapy or excision therapy auxiliary method. For fistula history of less than 3 months or fistula with pus phenomenon, as well as serious tuberculosis and other serious systemic diseases are prohibited. 2. Incision therapy: low simple anal leakage and low complex anal leakage; for high anal leakage incision, must be combined with hanging thread therapy, so as not to cause anal incontinence. Contraindications are the same as those for hanging wire therapy. If there is an anal fistula, you need to go to the hospital as soon as possible, by the doctor according to the specific conditions of the individualized diagnosis and treatment program, to avoid delays in the treatment of the disease.