The so-called autologous fat grafting for breast augmentation is to remove subcutaneous fat from other parts of one’s body, and after certain purification, inject the fat into the breasts with a syringe to increase the volume of the breasts. The method currently used is called fat particle grafting, which can be done through a syringe, and is also called autologous fat injection for breast augmentation (breast enlargement). The main side effects of autologous fat transplantation for breast augmentation are as follows: 1. The fat injected into the breasts cannot survive in its entirety, and a part of the fat may be absorbed, and during the absorption process, cysts can be formed in the breasts, and nodules and calcified foci will be formed afterwards, which will then lead to nodules and asymmetry of the breasts after the surgery, resulting in a failure of the breast augmentation effect, and causing the breast to be deformed, and the risk of drooping, etc.; 2. If the intra-operative If the sterilization and the instruments used for injection are not strictly sterilized, there is contamination in liposuction, fat flushing or fat injection, as well as no medicines are used for treatment when fat is flushed, all of them will cause infections, resulting in localized pus, redness, swelling, manifestation and other manifestations; 3. The skin at the site of liposuction will have dull sensation or petechiae, and even have dark skin and unevenness and other conditions.