Radiofrequency surgery is a widely used surgical procedure. The terms high-frequency surgery, electrosurgery and diathermy are used synonymously. The process generates high-frequency electrical energy between two electrodes. The technology operates at frequencies of one megahertz and outputs of twenty-five to seventy-five watts. The electrical energy generates an increase in temperature. In radiofrequency-assisted liposuction, an electrode is inserted into the tissue. The other electrode is placed on the skin. The inner electrode is a hollow probe with a diameter of three millimeters. This hollow probe is insulated right down to the tip. The electrode on the skin surface is wider and absorbs the high-frequency current. Both electrodes are connected to a handpiece. The highest temperature is reached one centimeter around the tip of the hollow probe and the fat is liquefied. The liquefied fat is sucked out by the negative pressure in the hollow probe, as with conventional liposuction. The outer probe measures the temperature on the surface of the skin to prevent burns. On the skin surface, a temperature of 40°C to 42°C leads to the desired skin shrinkage and the formation of new collagen. The tissue is then further thinned using the conventional negative pressure method or vibratory liposuction. A device that is approved for performing radiofrequency-assisted liposuction is called BodyTite (Invasix Ltd, Yokneam Ilit, Israel). BodyTite received approval from the US Food and Drug Administration (FDA) in 2016.