Anal fistula hanging line in the shedding before if the hanging line is normal is not painful, but there will be anal swelling, decreased secretion and other symptoms, at the same time there may be tugging, swelling, is a normal phenomenon. The main thing is to pay attention to whether there is bleeding in the perianal area, anal fistula hanging line off the line in the postoperative period of 2 weeks or so may occur, and the recovery of the individual has a direct relationship with the patient’s recovery, the patient should not carry out excessive exercise in the postoperative period of 1-2 weeks, to avoid premature dislodgement of the ligature line caused by the pulling, resulting in localized wound pain, bleeding. Premature dislodgement of the ligature wire may lead to incomplete growth or excessive severance of the local sphincter muscle, resulting in the anal contraction function being affected. After the ligature line falls off, we must pay attention to the perianal area of dryness, hygiene, and frequently choose red oil cream gauze for external dressing change treatment, to play the role of drainage, to avoid pseudo-healing or recurrence of anal fistula.