The concept of liposuction is surprisingly simple. Liposuction is a surgical technique that improves the body's contour by removing excess fat from deposits located between the skin and muscle. Liposuction involves the use of a small stainless steel tube, called a cannula (from the Latin word for reed, tube, cane). The cannula is connected to a powerful suction pump and inserted into the fat through small incisions in the skin. Fat removal is accomplished as the suction cannula creates tiny tunnels through the fatty layers. After surgery, these tiny tunnels collapse and thus result in an improved body contour.