After anal fistula surgery generally need to sit bath, two times a day can, sit bath is conducive to improve the blood circulation of the postoperative wound at the anal fistula, promote the growth of newborn granulation tissue, conducive to the recovery of the patient, the specific need to standardize the treatment under the guidance of the doctor. Post-operative anal fistula sitz bath, the general requirement is in the stool and bedtime, 2 times a day, a 10-20 minutes, according to the condition can be flexibly adjusted, there is warm water sitz bath, or 1:5000 potassium permanganate solution sitz bath, play a role in cleaning the trauma, promote the local blood circulation, swelling, anti-inflammatory, is conducive to the recovery of the trauma. In addition to sitz bath after anal fistula surgery, other postoperative care is also very important, regular medication changes, keep the bowel movement, in the diet should eat more high-quality protein and vitamin food, increase nutritional intake, avoid eating spicy and stimulating food, to keep the wound clean and dry, to prevent infection, and to monitor the healing of the wound. Post-operative anal fistula care is very important, need to be under the guidance of the doctor, according to the patient’s recovery and physical condition to make a comprehensive judgment, the number of sitz baths to adjust accordingly, regular post-operative review, such as discomfort needs to be dealt with in a timely manner.