At present, the injection of autologous fat particles is mainly used for breast augmentation, which generally has no obvious harm to human body, but there are some shortcomings.

When injecting autologous fat particles, fat cells from other parts of the human body are extracted and injected into the breast to achieve the effect of breast enhancement. There is no doubt that the toxicity of transplanted fat to human body is zero, so it has once become a favorite breast augmentation method for many women, but it has an obvious disadvantage: the transplanted fat cannot survive 100%, and the larger the transplanted volume, the lower the survival probability. Because after fat is transplanted from other parts of the human body to the breast, there must be enough supply to slowly combine with the surrounding tissue environment. The bigger the transplant volume, the more supplies are needed. Once the supply is insufficient, some fat cells will shrink and die. If the doctor injects a large amount of fat into the breast at one time, the breast will be full in a short time after operation (sometimes even better than other types of breast augmentation methods), but with the extension of time, some fat will begin to atrophy and necrosis, and the breast will gradually shrink. Usually, part of the fat that can't survive will be absorbed by the human body, while the other part may harden into fat nodules, which feels like a small breast tumor. At this time, surgery must be performed again to remove these fat nodules. Therefore, the injection of autologous fat particles usually needs to be carried out many times. If the recipient's breast is not too small, 1 ~ 2 injections can achieve the goal. If the breast is small or flat-chested, it may take 3 ~ 6 injections repeatedly to solve it, and the shape may not be ideal.

Although the extracted fat is safe, it does not mean that the extracted fat is 100% available. Many people like to do liposuction and breast augmentation at the same time, killing two birds with one stone. But in this process, we must pay attention to the liposuction method adopted by doctors. If liposuction methods such as vibration, ultrasound, electron and laser are used, human body fat will be destroyed, so the viability of extracted fat is almost zero; Only the fat extracted by negative pressure technology can be used for breast augmentation. Therefore, if the doctor not only uses liposuction to destroy fat, but also claims to use autologous fat for breast augmentation, then he is likely to use artificial fat to make up the number.