There is dramatically less bruising with tumescent liposuction totally by local anesthesia compared to other liposuction techniques under general anesthesia. There are two reasons for this significant decrease in bruising.
First, because there is so little blood loss with the tumescent technique, there is almost no blood that remains beneath the skin to cause bruising after surgery.
The second reason for decreased bruising is that with the tumescent technique, there is a considerable amount of post-operative drainage of the blood tinged anesthetic solution. The incisions are so small (about 1.5 mm) that they do not require stitches. By allowing these wounds to remain open for two to three days after the surgery, most of the residual blood-tinged anesthetic solution drains out.
This minimizes bruising and swelling and accelerates the rate of healing.