There are roughly two types of materials used in the former clinical application to breast augmentation, one for their own tissues, such as: autologous muscle, fat, composite tissue, etc.; the other breast augmentation material is silicon capsule breast prosthesis. 1, autologous muscle, fat Autologous fat transplantation for breast augmentation, due to the large amount of tissue required, the problems of fat liquefaction and absorption after transplantation have not been well solved, at present, except for the small amount of tissue required, it is generally rarely used. Fat cell injection for breast augmentation is a new procedure that has been studied and tried in recent years, but the indications have certain limits. Autologous muscle and composite tissue for breast augmentation is more traumatic and complicated to operate, and sometimes microsurgical techniques are required for nerve and vascular anastomosis, therefore, doctors with certain clinical experience and microsurgical techniques are required to operate. Moreover, due to the insufficient amount of tissue sources for breast augmentation, the shape and feel of the formed breast is sometimes not very satisfactory, and the scar left in other parts of the body after surgery, etc., it is rarely used in breast augmentation except in breast reconstruction. 2, silicon capsule breast prosthesis Silicon capsule prosthesis is currently recognized as a more ideal breast implant substitute, his advantages are: (1) good tissue compatibility, silicone rubber has a certain degree of inertia. No antigenicity does not cause immune rejection, no carcinogenic, teratogenic, mutagenic effects. (2) the use of a wide range of temperatures. The most outstanding feature of silicone rubber is that in a wide range of temperatures to preserve many of the required performance. (3) Mechanical properties: elastic retraction force, tear resistance, hardness, etc. are more satisfactory. (4) chemical resistance: the silicone rubber embedded in the body, in long-term contact with body fluids and various anions and cations and organic substances, can maintain the original elasticity and softness, no hardness, no brittleness, not corrosive, metabolic, absorption and degradation. (5) Easy processing and molding, easy to use.