With the promotion of double eyelid surgery, the incidence of postoperative double eyelid asymmetry has increased. Asymmetrical eyelids cause damage to the patient’s appearance as well as different degrees of psychological damage. Surgery is the main means of repairing eyelid asymmetry. The main causes of eyelid asymmetry include different skin tensions when marking the eyelid line; incisions that deviate from the marking line due to inaccurate measurement or incompetence; different heights of the skin fixed to the lid plate on each side; different amounts of skin, orbicularis muscle, orbital fat and other tissues removed on each side; different amounts of local anesthetic injected into the eyelids or the formation of a hematoma on one side, resulting in significantly different eyelid shapes, thus This can affect the intraoperative judgment. The focus of the repair is to individualize the treatment according to the specific cause of the asymmetry. For those who are not satisfied with both sides, a new blepharoplasty should be performed; for those who are relatively satisfied with one side of the lid, a new blepharoplasty can be performed on the unsatisfactory side based on the desired shape; however, if you want to achieve as much symmetry as possible, a new blepharoplasty is also recommended.