After anal fistula surgery may appear anal incontinence, anal eczema, postoperative swelling and pain, defecation and other sequelae, but the specific sequelae need to be decided according to the patient’s own physical condition. 1. anal incontinence: this is the high complexity of anal fistula surgery, surgery is more complex, may damage the anorectal ring as well as wounds caused by a large anal contraction function decline, which will lead to the phenomenon of anal incontinence. 2. anal eczema: for patients with a large scope of surgery, after surgery will make the anus closed not tight, so that the intestinal fecal water and mucus seepage out of the anus around the anus, which will lead to anal eczema and other symptoms. 3. postoperative swelling and pain: in the anal fistula surgery is not completely dealt with fistula, there may be postoperative recurrence, causing redness, swelling, pain and even pus in the perianal area. 4. defecation: after anal fistula surgery, the formation of large scars in the affected area, which will lead to patients with defecation, some patients may also have pain. In the anal fistula surgery, according to the patient’s own situation may appear different sequelae, when the discomfort symptoms, should go to the hospital in time for examination and diagnosis, targeted treatment or treatment.