Autologous fat breast enhancement is less harmful, mainly including: 1, surgical trauma: including breast transplant site with less trauma and fat donor site with greater trauma. For obese patients, surgery can reduce weight at the same time, but for patients who do not need to lose weight, the surgical trauma in the fat donor area is a burden; 2. To achieve the desired effect, it may be necessary to perform 2-3 times of autologous fat breast augmentation surgery, and the risk of liposuction trauma and general anesthesia can be doubled; 3. The fat transplanted into the breast may be partially liquefied and poorly absorbed, which brings trouble to the screening of breast cancer.