Listen to the introduction of stem cell fat transplantation by plastic surgeons at BK Plastic Surgery Hospital in Korea. First of all, we should extract fat from the thighs, buttocks and abdomen where human pterygium is easy to gather. After sharing, pure fat cells and stem cells can be extracted from them, and then injected into the parts of the patient's body that need fullness with very thin needles. The whole operation process is stem cell fat transplantation technology.