The choice of anesthesia for liposuction is related to the following factors: the amount of fat to be extracted; the size of the liposuction area; the patient’s health status and requirements; and the patient’s economic status. The main types of anesthesia for liposuction are local anesthesia (swelling anesthesia technique) and general anesthesia. There is no conclusive evidence as to which type of anesthesia is significantly safer and more effective than the others in liposuction. Therefore, before deciding which type of anesthesia to use, the doctor must take into account the patient’s health status, anxiety level, and special factors related to anesthetic complications. 1. Local anesthesia (swelling anesthesia technique): A large amount of saline solution containing epinephrine and lidocaine is injected into the subcutaneous tissue to make it swell. The ratio of the injected amount to the expected amount of fat aspiration is 2:1~3:1. Swelling anesthesia technique has the advantages of safety and effectiveness, less blood loss during surgery, no blood and fluid transfusion, light tissue damage, fast recovery after surgery, etc. It has been adopted and improved by many plastic surgeons worldwide and has promoted the development of fat aspiration. 2, a larger area of fat suction, it is still recommended to use general anesthesia is more appropriate: this is due to the longer operation time, discomfort is more obvious, the use of general anesthesia can eliminate the patient’s fear of surgery and discomfort, making the operation more humane and improve the quality of surgery. Anesthesia in liposuction surgery is very important. Generally, as long as you choose an anesthesiologist from a regular hospital to do the anesthesia for liposuction surgery, it will not cause adverse effects on your body. Nowadays, general anesthesia is gradually tending to use anesthetic drugs that are short-acting, reliable and have light adverse reactions, and these drugs will be quickly cleared by the organism after the surgery and will not cause adverse effects on the body.