Fat grafting is a technique in which harvested adipose tissue is injected underneath the skin to reconstruct traumatic, oncologic, or congenital defects.Fat grafting, also referred to as fat transfer or fat injections, is the surgical process by which fat is transferred from one area of the body to another area.The surgical goal is to improve or augment the area where the fat is injected.Fat is the largest source of stem cells in the body. Fat injection or grafting is skin to Fat Derived Stem Cell grafting and has broad applications in cosmetic surgery. Fat injected into areas requiring volume-enhancement produces safe, long-lasting, and natural-appearing results as volume is replaced to tissues where fat is diminished.Fat injection or grafting is a technique that is growing in popularity.