There are two types of surgery for infantile anal fistula: sphincter-protecting and sphincter-incising. Protect the sphincter type of surgery, including hanging line drainage, fistula elimination. Hanging line drainage is the use of rubber bands or corrosive medicine line mechanical compression to slowly cut the anal fistula operation. Fistula debridement usually involves removing all of the fistula wall, even healthy granulation tissue, and the wound usually does not require sutures. Sphincterotomy-type procedures include fistulotomy and the combination of the real and imaginary methods of hanging. Fistulotomy is a procedure in which the fistula is completely cut open and the wound is healed by the growth of granulation tissue, and is indicated for low-level anal fistulas. The combination of the real and virtual methods is very effective in treating high fistulas, as it preserves a portion of the sphincter muscle and reduces patient pain. Children before and after surgery should maintain perianal hygiene, follow the doctor’s instructions, and actively cooperate with the doctor’s treatment, not without authorization, so as not to delay the condition. Pay attention to rest on weekdays, avoid overwork.