If the wound split when the stitches are removed depends on the level and depth of the split, if the wound split at the superficial crust is irrelevant, use a piece of butterfly tape to keep the wound on both sides in a relatively stable state after normal alignment, do not strenuous activity, and it will heal again in three to four days. If the wound level is deeper when the stitches are removed and the subcutaneous sutures have different degrees of secondary damage, it means that the stitches may be removed too early or the wound may be infected during the recovery period and the patient does not pay attention to the protection of the wound resulting in non-healing. At this point, care must be taken to fold or re-suture both sides of the wound again as much as possible, because a second injury is more difficult to heal than a first injury and is more likely to become infected.