The diameter of fiber-optic grease-dissolving sleeve is only 1mm, which can reduce the invasion opportunity of external bacteria. This method is safe, will not damage blood vessels and nerves, and will not appear uneven phenomenon caused by negative pressure liposuction. Dissolve fat and achieve good hemostasis effect at the same time to ensure postoperative recovery. Only local anesthesia is used during the operation, and no swelling solution is injected, so there will be no bleeding during the operation.