There are two sides to everything and breast reconstruction after mastectomy is no different, there are good sides and bad sides. If autologous tissue is chosen for breast reconstruction, in addition to the trauma of mastectomy, there are also wounds in the donor area, and the added trauma can lead to secondary bleeding, infection, subcutaneous fluid accumulation, and even the formation of seroma, resulting in long-term fluid leakage and loss of protein. If the reconstruction method chosen is prosthesis, there will also be contracture of the prosthesis envelope, rupture caused by the prosthesis, infection caused by the prosthesis, and even prosthesis exposure, i.e. there is an incision in front of the prosthesis placed behind the pectoralis major muscle, and this incision becomes infected and the skin flap is necrotic, which will make the prosthesis exposed to the outside of the skin, called prosthesis exposure. After the prosthesis is exposed, the prosthesis must be removed, called the loss of prosthesis. This is generally very unlikely to happen, but it is also one of the side effects.