Excessive fat accumulation makes the body lose its beautiful curves and causes various inconveniences in life. Nowadays, the most commonly used negative pressure liposuction is used for body sculpting from an aesthetic point of view, and in special cases, the extracted fat can be processed and transplanted to concave and thin parts of the body by injection to improve the shape, thus achieving the purpose of perfectly shaping the body contour. Negative pressure liposuction has little tissue damage, obvious effect, little bleeding and fast recovery. Tummy tuck is performed in the fat layer underneath the skin. The surgery does not enter the abdominal cavity and the incision on the skin is very small, so there is no significant impact on pregnancy and childbirth. The abdomen is the most common area for fat aspiration, accounting for more than half of liposuction cases. The navel incision is usually chosen to hide the surgical scar in the umbilical fossa. In addition, for lower abdominal liposuction, the incision can also be chosen in hidden areas such as the groin and the pubic hair distribution area. After the surgery, it is necessary to wear elastic shapewear for about 3 months to achieve a more desirable shape after the swelling subsides. The results depend on the amount of local aspiration, the symmetry and flatness of the area, and the natural transition to the surrounding non-aspirated areas. In some areas where the fat is dense and difficult to be suctioned out, it can be easily suctioned out of the body with the use of ultrasound, high frequency electric field, laser lipolysis and other techniques that first melt the fat into a liquid or semi-liquid form.