Breast augmentation is one of the most common plastic surgery procedures performed on women, and should be professionally referred to as breast augmentation or breast enlargement. Breast augmentation materials can be divided into two categories, one is synthetic materials and the other is self-tissue. The main type of self-tissue is autologous fat. Synthetic materials are divided into injectable materials and implants. Injectable materials once appeared paraffin oil (late 19th century), liquid silicone (1960s) are because there are serious complications (granuloma, tissue necrosis broken) and stop using, more than 10 years ago China had a popular injection of Omedin gel (polyacrylamide hydrogel, the trade name also called Ingel Farrer) also because of various complications, lack of safety and was banned by the Drug Administration. So far there is no safe and reliable injectable breast implants in the world. The shell of the prosthesis is made of solid silicone rubber, while the contents have been filled with liquid silicone, saline, artificial plasma substitute, vegetable oil, silicone gel, after 50 years of continuous testing and research, it is confirmed that the silicone gel prosthesis and saline prosthesis are the most safe and reliable, and after years of improvement of the silicone gel prosthesis because of its soft feel, low leakage The silicone gel implant is now the most commonly used breast implant in the world because of its soft feel and low leakage rate.