The wound healing and skin breaking after anal fistula surgery may be related to trauma, poor postoperative healing, recurrence of anal fistula, pseudo healing, etc. It needs to be dealt with according to the cause through medication (oral amoxicillin, etc.), surgical treatment (fistula resection surgery, etc.), etc. 1. Trauma: If you have sex just after the wound has healed, or if you use the toilet too hard, you may break the skin in the area. If accompanied by infection, need to follow the doctor’s instructions to use amoxicillin, cefixime and other drugs anti-infection treatment, local application of erythromycin ointment. 2. Poor postoperative healing: as the granulation tissue is relatively delicate and fresh, strenuous exercise may lead to the phenomenon of broken skin. If necessary, you need to clean up the blood clots or foreign tissue in the area to help the healing process and avoid strenuous exercise. 3. anal fistula recurrence: anal fistula is very likely to recur, once recurred, will be manifested as local pus or blood outflow, this time need to be again anal fistula excision surgery and other methods of treatment. 4. false healing: if the granulation tissue grows from the outside to the inside, it will form a false healing, this situation requires fistula excision surgery. After anal fistula surgery wound healing and broken skin, it is recommended that patients go to the anorectal department in a timely manner, after a systematic examination, strictly comply with the doctor’s instructions for appropriate treatment.