1, Crohn’s disease anal fistula In the systemic treatment at the same time as possible to conservative treatment. Asymptomatic Crohn’s disease anal fistula without surgical treatment; low Crohn’s disease anal fistula using fistulotomy;. Mouth disease Ming medical treatment of fistula with a detailed clinical history and localized above the deep muscle layer. Invasion of the puborectalis muscle complex Crohn’s disease anal fistula can be long-term virtual hanging line drainage for palliative treatment. If the rectal mucosa is largely normal to the naked eye can be used to push the rectal mucosal flap to close the internal mouth. 2, tuberculous anal fistula need to be combined with systemic anti-tuberculosis treatment (isoniazid, rifampin, ethambutol, streptomycin, etc.) with the local use of traditional Chinese medicine (including herbal creams and sitz baths), the components of which are: cypress, comfrey, horsetail, bitter ginseng, dahurica, angelica, alum, frankincense, myrrh, etc. 3, infant and child anal fistula superficial fistula is the main, there may be self-healing. If non-surgical treatment is not effective, incision can be chosen. Infant anal fistula is mainly low simple anal fistula, accounting for more than 90%. In the management of infants and young children, multiple, too large and too deep operations should be avoided because of the underdevelopment of the anorectal muscles [7]. The indications for their surgery are: recurrent episodes within a short period of time (within 3 months) with a tendency to enlarge and complicate and the number of bowel movements <3 times/day. It must be agreed and confirmed by all family members.