Autologous fat transplantation may make its fat cells live permanently, but its effect may not be permanent. Because the fat cells were transplanted from its original parts, such as the inner and outer thighs, lower abdomen, upper abdomen and bilateral waists, their fat particles were free, and they had to undergo the reconstruction of blood vessels and nutrition, so although the fat cells survived, because the nutritional conditions could not keep up, or the position changed, after the local cytokines changed, the loss of lipids and lipid droplets caused the fat cells to become smaller and gradually lost their functions, so it was strict.