The technical difficulty is high, and whether the surgery can be completed perfectly is related to the basic conditions of the patient’s own eyes and the basic level of the surgeon, and the risks of the surgery are high, and it is easy to cause postoperative sequelae such as asymmetry of the eyes, lack of smoothness of the eyelid line or local scar growth, the specific risks are as follows: 1. Asymmetry of the eyelids on both sides: it is related to the amount of skin removed on both sides The surgeon will design the surgical position of the eyelid before surgery, but poor curvature when drawing the line will result in unnatural curvature after surgery. In addition, uneven skin removal, uneven suture placement, too high or too low, etc. can lead to this phenomenon; 3. Effort to open the eyes: if the surgeon is not skilled, resulting in damage to the levator muscle, or if the suture placement is too high, this can also lead to this phenomenon; 4. Disappearance of the double eyelids: mostly caused by inadequate removal of the prelid tissue, including the orbicularis oculi and fat tissue, after cutting the skin The result.