Fat injection can be performed together with liposuction. In this case, fat required for fat injection will come from liposuctioned fat. The fat is then processed in the same way and the fat injection procedure is carried on.
During a fat injection procedure where liposuction is not performed, both the area from which the fat is taken and the area to be treated with fat injection are anesthetized. Fat injection is then performed by removing fat from a "donor" site, such as the abdomen, using a syringe. The fat injection procedure then continues by placing extracted fat in a special machine that will separate excess fluids from fat. The next step in the procedure is re-injection of fat in the treatment area.