The wound is a little purple for more than a week after the removal of leg stitches, which may be due to hyperpigmentation, poor circulation, secondary infection and other reasons. 1. Hyperpigmentation: after the recovery of the suture wound, it is possible that the traumatic stimulus will cause hyperpigmentation, which will lead to a little purple wound more than a week after the removal of leg stitches. 2. Poor circulation: suture wounds can cause local congestion, which may lead to poor circulation, resulting in local congestion, which may lead to poor circulation, resulting in leg stitches more than a week after removal of wounds a little purple. 3. secondary infection: after removing the suture if the suture needle infection or wound and other parts of the secondary infection, may also lead to leg suture removal a week after the wound is a little purple, may cause pain, exudate, purulent secretion and so on. There may be other reasons why the wound is a little purple for more than a week after the removal of leg stitches, and you need to go to the hospital in time for examination and treatment.