How long can autologous fat breast augmentation last is mainly related to the individual’s body quality, the amount of transplanted fat and the post-operative care situation, which cannot be generalized. Usually, autologous fat breast augmentation is not stable within months, and 3 injections are needed. After each injection, autologous fat will be absorbed partly by the body, and after 3 injections, except for the part of fat absorbed by the body, the remaining fat will be hoarded in the chest and will not disappear again, which can generally last 15-20 years. However, if the patient undergoes body aesthetic or weight loss after breast augmentation, the amount of fat will not be reduced, but the volume of fat will become smaller, and the size of the breast will be slightly changed at this time. In addition, women need to pay attention to the degree of fat absorption and whether there is fat liquefaction after breast augmentation, and regular re-examination should be conducted at a later stage. It is recommended to have a light diet and to eat less seafood or greasy food.