Local anesthesia (local anesthesia) refers to the injection of local anesthetic into the body while the patient is conscious, so that the sensory nerve conduction function is temporarily blocked in a certain part of the body, and the motor nerve conduction remains intact or is blocked to varying degrees at the same time. The reason why local anesthesia is chosen for double eyelid surgery is because it is necessary to cooperate with the surgeon’s facial expression movements such as opening and closing the eyes during double eyelid surgery in order to ensure the coordination of the facial proportions after plastic surgery. For local anesthesia, the main risk exists in the possible allergic reaction to the local anesthetic and the toxic reaction that occurs when the local anesthetic is mistakenly injected into the blood vessels. In clinical practice, these risks exist but are controllable and unlikely to occur. In addition, in addition to local anesthesia, general anesthesia and superficial anesthesia are also used in cosmetic surgery. General anesthesia is a process in which anesthetics are inhaled or administered intravenously into the body to depress the central nervous system, causing the patient to lose consciousness without pain sensation around the body. Epidermal anesthesia is the use of epidermal anesthetics, which are applied to the skin’s epidermis to provide a superficial anesthetic effect, and are generally used for injections, lasers, and embroidery. There are no absolute contraindications to anesthesia. The anesthesia will be selected according to the patient’s physical condition in order to ensure the patient’s safety. Therefore, a physical examination before surgery is essential. For the use of anesthesia drugs, only regular hospitals are qualified to perform them, and candidates should remember not to go to unqualified institutions for surgery to avoid anesthesia accidents.