The time for surgical stitch removal varies according to the patient’s stitch site and the healing of the patient’s incision. 1. head, neck and facial incisions are rich in local blood flow, the incision heals faster, and if the incision is not significantly red and swollen after 3-5 days of stitching, the silk thread can be removed. 2. for surgical incisions in the lower abdomen, perineum and buttocks, the stitches can be removed about 7 days after surgery when the wound heals firmly. 3. for extremity incisions, the stitches are removed in 10-12 days after surgery, but incisions with greater tension near the joints can be extended to 14 days after surgery. For elderly patients or patients with tumor lesions, due to the slow healing of the patient’s incision, the stitches can be removed as long as possible for 2-3 days after the original removal time.