At present, commonly used breast augmentation filling materials are divided into two categories: one is shaped breast prosthesis, and the other is unshaped injection material. The formed breast prosthesis is made of medical solid silicone as the outer membrane, and its contents are: liquid silicone, silicone gel, hydrogel and physiological saline, etc. The formed breast implants are available in different sizes and can be selected for different body conditions. The appearance of the prosthesis is generally hemispherical. Silicone and silicone gel prostheses have been widely used for cosmetic breast augmentation since the 1970s. Because of its large molecular weight and jelly-like texture, its feel is closer to normal human tissue. Saline breast implants are filled with physiological saline that is harmless to the human body. Hydrogel is actually composed of water and polysaccharide compounds, and has a three-dimensional chain jelly-like structure. Generally, there is no extravasation problem. Even if the prosthesis ruptures, the hydrogel content can be quickly absorbed and decomposed by the human body, and is harmless to the human body. Harmful. Shapeless breast injection materials include autologous fat and hydrophilic polyacrylamide jelly. Autologous fat can be extracted from the abdomen, thighs, etc., cleaned, and then injected under the breast tissue, but the amount injected each time should not exceed 50ml. Due to the liquefaction and fibrosis of fat, it is necessary to re-inject after an interval of 1-3 months until the desired effect is achieved. Hydrophilic polyacrylamide jelly is a biochemical synthesis imported from the former Soviet Union in recent years. This material is indeed convenient, simple and less painful for the recipients. However, a very small number of people may find it more troublesome to remove the prosthesis if they need to remove it in the future. Although there are still some shortcomings in the use of silicone gel implants, such as the human body's natural defense function against breast implants and the formation of a fibrous capsule around the breast implants, which makes the breasts feel harder, this material is still the most popular in the world for breast augmentation. The first choice for breast surgery. At present, experts recommend that you use silicone gel breast implants with rough surfaces because they have the strongest ability to prevent the formation of fibrous capsule. In addition, the McGhan breast prosthesis produced by the American company McGhan is a high-viscosity silicone gel that is extremely soft and very natural and lifelike. Toronto plastic and cosmetic surgeon Mitchell H. Brown believes that silicone implants can allow women to have a pair of natural and beautiful-looking breasts after breast augmentation or reconstructive surgery, while also providing them with a variety of choices. The results he has obtained in practice also prove that many women are very satisfied with the results after silicone breast augmentation surgery. Dr. Brown said: I think the most important advantage of silicone implants is that they can increase breast size in a very natural and well-proportioned way. At the same time, Dr. Brown also pointed out that silicone implants feel more natural than saline implants. That's because silicone implants can increase volume, maintain shape, and have good surface texture, and can blend into their own breasts as a whole. The breasts and implants move together, while saline implants are just the opposite. They float freely like a free-flowing implant. Things move like that. In addition to being highly rated by patients, complications with this implant are similar to or lower than those with saline implants.