Most of the candidates after double eyelid surgery, eyelid peripheral range or even lower eyelid area bruising symptoms, can be given hot compress to relieve bruising, the reasons include: 1, incision double eyelid on the local tissue stretching caused some damage. Therefore, the pulling effect on the surrounding tissues will cause postoperative bruising of the surrounding tissues; 2, the surgical operation process causes damage to some of the fibro-capillaries, causing postoperative bruising of the local tissues; 3, the bruising of the tissues against the lower part due to gravity; 4, reactive bleeding, which is a normal phenomenon.