Breast surgery is performed using general or local anaesthesia.  At the fat removal site, small incisions are made through which a metal cannula is inserted, and fat is removed. The fat is then specially prepared, and injected. Transplantation fat is taken from those problem areas where the largest layer of subcutaneous fat is found: lumbar, abdominal, sometimes the thighs or back. More fat is always injected, as only up to 50 percent heals well – part of the transplanted cells is accepted by the body as normal adipose tissue, and non-adherent fat cells are broken down, carried around and removed. After the operation, a compression bra is worn, the fat suction (incision) areas are sealed with special patches.