Double eyelid surgery, also known as blepharoplasty, also known as double eyelid surgery, visually increases the contour of the eyes, adds a sense of dimension to the eyes, makes the eyes appear larger, and causes the eyelashes to curl upward, giving a vivid, evocative look. As far as risks are concerned, all surgeries have varying degrees of risk. Blepharoplasty is a very mature cosmetic surgery procedure, and as long as you choose a regular surgeon to perform the surgery, the risks are minimal. However, due to the patient’s own physical condition, improper post-operative care, and the surgeon’s handling of the procedure, there are still adverse reactions and complications that can occur after the surgery. One of the most common is infection in the surgical area, which is usually caused by the lack of strict aseptic operation or improper postoperative care. Postoperative hematoma is also a common surgical complication, mainly due to incomplete hemostasis during the operation, the patient may be in menstruation or the patient herself has coagulation disorders. In addition, some surgeons peel too deeply during surgery, causing damage to the levator muscle, which can cause the patient’s upper eyelid to droop after surgery. Blepharoplasty is very important for preoperative delineation and evaluation, as poor surgical design can result in asymmetry or poorly shaped blepharoplasties on both sides of the face. Therefore, if you need blepharoplasty, do not go to a small clinic.