Ultrasonic lipolysis is usually useful. In the process of treatment, low negative pressure can be generated by sending out ultrasonic waves at the part where liposuction is needed, resulting in tissue gap. Through the well-known cavitation phenomenon in physics, the fat can be broken by implosion, and then the fat can be taken out of the body by negative pressure. The effect of treatment will be very natural, and it can also maintain the therapeutic effect for a long time, which is a very good way to lose weight.