Whether or not a wound can be removed depends on the incision site, local blood supply, and other decisions. Healing is categorized into Grade A, B and C. Generally grade A healing, some grade B healing can be removed. 1. Grade A healing: If the healing is excellent and there is no adverse reaction, it is grade A healing, combined with the suture site, the suture can be removed as required. Generally speaking, the head, face and neck can be removed on the 5th day after surgery; the lower abdomen and perineum can be removed on the 6th~7th day; the chest, abdomen, back and buttocks can be removed on the 7th~9th day; the limbs can be removed on the 10th~12th day; and the sutures can be removed on the 14th day after surgery at the reduction suture or joints. 2. Grade B healing: There are inflammatory reactions at the healing site, such as redness, swelling, hardness, hematoma, fluid accumulation, etc., but there is no pus. You can refer to the above time to change the medicine, disinfection treatment, intermittent removal of stitches. If the wound heals well according to the specified time, the stitches can be removed in time; otherwise, the stitches need to be removed 2 to 3 days later. 3. Grade C healing: the incision appears pus, need to remove the stitches in advance, drain the pus from the wound, and change the medication regularly. It needs to be decided according to the specific wound healing situation.