The liposuction needle tip of each part is different, and the amount of liposuction fat is also different. Usually, the fat in the abdomen, waist and back is thicker, and there will be more liposuction, while the liposuction on the face is relatively less, and more is liposuction, or the wound surface adheres after local liposuction, which can improve the face. At present, liposuction is relatively safe. After years of development, there are many liposuction methods, including hydraulic liposuction, laser liposuction and mechanical vibration liposuction, all of which can achieve auxiliary liposuction. Invisibility also shortens the operation time, reduces the pain of patients, and the effect will be better after the operation. Liposuction is a method of absorbing fat by using instruments to penetrate deep into subcutaneous fat layer through a small incision in the skin, which is suitable for body shaping. Most liposuction sites are selected with high fat content, while the anterolateral calf and forearm have less fat content and more muscles, which leads to poor liposuction effect and easy damage to nerves and blood vessels. Liposuction sites often choose face, double chin, neck, shoulders, thighs, calf back, upper and lower abdomen, side waist, upper buttocks and buttocks.