Procedure Overview Liposuction is a surgical procedure that uses a suction technique to remove fat from specific areas of the body, such as the abdomen, hips, thighs, buttocks, arms or neck. Liposuction also shapes (contours) these areas. Other names for liposuction include lipoblast and body contouring When you gain weight, fat cells increase in size and volume. In turn, liposuction reduces the number of fat cells in a specific area. The amount of fat removed depends on the appearance of the area and the volume of fat. The resulting contour changes are generally permanent as long as your weight remains stable