In ultrasonic liposuction there is less capillary tearing and therefore much less blood loss. In traditional liposuction the skin contracts very little. Ultrasonic liposuction may cause skin contraction and retraction especially in areas like the neck. In the early stages and with the two stage method of ultrasonic liposuction the process may take longer. It is expected that as surgeons become more experienced and the equipment better it will take less time.
Some studies also suggest that with ultrasonic liposuction there is less pain and discomfort.
The ability to refine shape and sculpt is better with ultrasonic liposuction and it is much less strenuous for the surgeon. The complication rate appears less for ultrasonic liposuction although there are complications that are unique for ultrasonic liposuction. Because there is less damage to the small blood vessels, patients experience less bruising and perhaps less irregularity with ultrasonic liposuction. Patients may be happier because the results are seen earlier, usually weeks instead of months after surgery. Technically the surgeon must use a straight suction cannula in ultrasonic liposuction .