Mentor is one of the many brands of breast augmentation implants. As breast augmentation technology is becoming more and more mature, the risk of surgery is very small, but given that breast augmentation is an invasive operation, if you choose irregular institutions and unqualified people to perform the operation, it will greatly increase the risk of surgery, which may occur: 1. 2. Nerve and blood vessel damage: breast augmentation is an invasive operation, which requires incision in the skin, and improper operation can damage nerves and blood vessel tissues, resulting in bleeding during surgery or abnormal sensation after surgery, such as insensitive nipples and areolas; 3. The tissue will produce an envelope. The normal envelope is soft, but if the envelope contracture will become hard, the chest will also feel the lump, and serious cases will produce strong pain. If the patient chooses hairy implants during breast augmentation, the probability of contracture of the envelope will be increased; 4.scar: breast augmentation incision may produce scar, if the patient is a keloid, there will be obvious scar; 5.breast asymmetry: if the surgeon does not have sufficient experience, there will be asymmetry of the breast after surgery.