The wound after fracture surgery should be removed at the latest 3 weeks after the surgery. If there is no infection in the wound after surgery, the normal healing time is 12-14 days, and the stitches can be removed at this time. However, there are individual reasons, such as poor glycemic control or post-operative infection in diabetic patients, and after treatment to control the infection, the stitch removal time can be relatively extended, but the extended time should not exceed 1 week. If the stitches are not removed for too long, the location of the stitches is connected to the subcutaneous soft tissues inside, and bacteria can easily enter the subcutaneous soft tissues through this place, which can easily lead to infection and inflammation inside. If the stitches are left in the wound for a long time, it may also lead to a foreign body reaction.