The advantages of autologous fat filler include: the material is taken from its own fat particles, because it is the human body’s own tissue, which not only ensures non-toxic and harmless, but also excludes the occurrence of adverse reactions such as rejection, immunity, contracture and deformation, and it is easier to take the material for transplantation; the source of the material is fat particles rich in stem cells, and the collected stem cells have regenerative and rejuvenating effects, which are more natural in form and more affordable than prosthesis; autologous fat filler Through minimally invasive technology, it is non-surgical, non-incisional, scarless, foreign body-free, painless, and time-consuming; for people with local fat accumulation, it can be used for facial modification and breast augmentation, and at the same time, it can also play a role in losing weight and slimming, and shaping a perfect concave and convex body curve. The disadvantages of autologous fat filling include: the survival rate of fat cells is low, the average survival rate of autologous fat is not higher than 40% internationally, and about 30% domestically, and whether the survival rate of fat can be improved is the key to the success of autologous fat transplantation; fat injected into the implanted area is prone to uneven distribution, which affects the aesthetics; too much fat or too concentrated injection, resulting in a large amount of fat accumulation, will be caused by insufficient blood supply Fat necrosis, dissolution and absorption can easily lead to infection and sequelae such as fibrosis or calcification.