The time of debridement after PPH surgery is about one month, depending on the patient’s post-operative recovery, personal constitution, and whether the patient has some underlying diseases, etc. Some need to be extended by 1-2 weeks, and some do not need to be debrided, as follows: First, the time of debridement after surgery should be extended by 1-2 weeks if the patient is diabetic, and if the body is weak, or if the patient has Patients with malnutrition, the time of postoperative debridement should also be extended by 1-2 weeks. Second, no need for debridement: some patients may not be debrided after the local nail wrapping, and the nail will exist permanently. As for whether the nail is removed or not, the effect is not too great. As long as there are no other abnormalities such as co-infection, it does not matter whether the nail is removed or not, as long as no discomfort occurs.