Because the implant cavity is too small, the capsule of the prosthesis is too thick and hard. After the original prosthesis was taken out through the original surgical incision, the capsule contracture was released, and the implant was further peeled off to provide enough space for breast augmentation. After breast augmentation failed by artificial fat injection, the original injection was taken out by an extra method, and the second breast augmentation operation was carried out at the same time to ensure the effect of the operation.