In stem cell plastic surgery, stem cells are also called' universal cells' because they can differentiate into all organs and tissues needed by the human body, such as bones, cartilage and muscles, and also exist in adult fat. After subcutaneous fat transplantation, stem cells were transplanted together in the process of supplementing subcutaneous fat. This can not only delay the aging phenomenon, but also improve the skin because of the hormones secreted by fat. Stem cell plastic surgery is this principle.