The main things to consider include timely detection of anal fistula, timely treatment after detection of anal fistula and diet after anal fistula surgery. 1. If there is moisture in the anus, anal itching, frequent feces in the underpants, mucus secretions, pus and blood secretions, etc., intermittent pain in the anus locally or when pressing the anal periphery of the striated hard lumps, the possibility of anal fistula is considered to be high, and the physical examination reveals that there is a fistula external opening. 2. Surgery is the only way to completely treat anal fistula, surgical methods, including anal fistula excision, anal fistula hanging line, etc., surgical trauma, healing time is long, the need for regular disinfection and dressing after surgery, to keep the trauma clean, dry, drainage and promote wound healing. 3. After surgery to change the diet, light, high fiber food, avoid spicy stimulating diet, warm water cleaning after stool, maintain perianal hygiene, bowel movement, avoid sitting and squatting, avoid exertion. The above symptoms of anal fistula, the need for timely consultation, a clear diagnosis, anal fistula must be surgical treatment, in order to completely eradicate, and many anal fistula surgery, there is still a chance of recurrence, so the anal fistula try to early treatment, complex anal fistula is more prone to recurring, to the body to bring about adverse effects.