Recovery from anal fistula consists of three phases, firstly the inflammatory exudative phase, then the granulation proliferation phase and finally the complete healing phase. The recovery period of anal fistula does not have a clear definition, and the length of recovery is related to the patient’s physical condition and the level of care. 1. Inflammatory exudate period: one week after surgery belongs to the period, manifested in the trauma of necrotic tissue visible bright exudate, inflammatory exudate, etc., belongs to the body’s self-cleaning phenomenon, the need for regular disinfection and change of medication, to maintain hygiene. 2. Granulation proliferation period: about two weeks after the operation, fresh granulation begins to fill the wound, the wound is bright red, at this time you need to protect the newborn granulation tissue, avoid injury, prohibit strenuous exercise, if necessary, give the granulation pruning, to achieve the ideal healing. 3. complete healing period: one month after the granulation tissue is basically mature, epithelial tissue began to replace the granulation tissue, to achieve complete healing. The recovery period of anal fistula need regular review, can not be based on the above clinical manifestations to judge, such as discomfort symptoms worsening, should be timely medical treatment, to avoid deterioration of the situation.