Breast cancer is one of the most common malignant tumors in women in developed countries. In China, the incidence of breast cancer has ranked high as the first malignant tumor in women in recent years and is increasing at a rate of more than 3% year by year, in which BRCA1 and BRCA2 are associated with the development of breast cancer, with a family history of breast cancer or/and ovarian cancer, and the probability of breast cancer occurring before the age of 40 is as high as 19% for those with BRCA1 mutation. Someone’s first surgery is to remove the submammary ducts and establish the submammary blood supply; the second should be a bilateral mastectomy plus breast expander implantation, and finally the expander is removed and placed into a modular breast implant to reshape the breast to achieve greater perfection. We are now doing it all at once, roughly estimating how big an implant is needed, removing the gland and stripping the submammary ducts, contemporaneous breast reconstruction, and implanting breast implants. It’s also nice that the patient is under anesthesia a few times less.