Ultrasound lipolysis for shoulder slimming is a non-invasive treatment that is done on the go and does not affect work and life, making it a relatively safe procedure. However, there are inevitable side effects such as slight edema, ecchymosis and dullness of touch in most patients during the post-operative recovery period. The edema and ecchymosis may subside within 2-4 weeks, and the slight dullness of touch usually subsides within 1-2 weeks. Patients are advised to choose a regular plastic surgery institution for medical treatment and standardized surgical operation can effectively prevent complications. Skin damage, bumpiness, numbness, etc. may occur if the operation is not performed properly. When the above complications persist without recovery, promptly seek medical treatment. The method has a good effect on slimming the flab of the shoulder. It uses the principle of ultrasound emission outside the body and focus inside the body to irradiate the human shoulder fat tissue at a fixed point, and through its mechanical effect of destroying the fat cell membrane and thermal effect, it causes the fat cells to rupture and dissolve, which permanently reduces the number of fat cells in the shoulder and achieves a lasting shoulder shaping effect. Moreover, its inflammatory cells and fibroblasts in the treatment area can induce degenerated collagen to form new collagen, which effectively makes the shoulder skin tighten. In addition, since the treatment is to reduce the number of fat cells from the root, the reduced cells will not increase after the treatment ends, so the chance of rebound after the treatment is usually very low as long as you maintain healthy habits and a regular diet.