How many days after the patient’s lip stitches can be removed, generally speaking, it depends on the local incision healing situation and whether infection occurs at the stitches and other factors to make an objective analysis. First, if the patient’s wound recovery after lip stitches is better, there is no obvious redness, swelling, pain and oozing. At this time, the local silk thread can be removed 3-5 days after surgery in accordance with the conventional time, and the wound can achieve a better healing effect. Second, if the patient’s lip wound is located in the inner side of the mouth, because of the bacteria in the mouth and caused by the lips with obvious redness, swelling, pain, fluid, pus and other signs of infection. At this time, the patient needs to remove the silk thread at the lip in advance to avoid the gradual increase of fluid and pus accumulation under the local area, resulting in serious infection. At the same time, strengthen the wound disinfection treatment, local inflammation control, the wound at the lips can be faster healing.