The stitches may grow in the flesh if the stitches are removed late. The purpose of the stitches is to make the wound fit better and facilitate the growth of the wound. The stitch removal time is related to the body’s blood supply and nutritional status. If the wound reaches the stitch removal time and the wound is observed to be healing well, the stitches can be removed. If the stitch removal time is too short, the wound is not fully grown, which will easily make the wound split. If the stitch removal time is too late, the wound has been fully turned, if the skin tissue and scar continue to grow it will cover the stitches, which is equivalent to the stitches growing into the flesh and will increase the difficulty of stitch removal, so the stitch removal time needs to be mastered, neither too early nor too late to remove the stitches.