Breast cancer 3A can be treated with minimally invasive surgery. Breast cancer 3A belongs to progressive breast cancer, and minimally invasive surgery to treat progressive breast cancer can reduce lymphatic vessels, axillary blood vessels or nerve injury, avoid the extrusion of the tumor by conventional surgery, and reduce the traumatic nature of treatment. However, minimally invasive surgery has higher requirements for patients and needs to strictly grasp the indications. 1. Minimally invasive surgery under laparoscopy: the surgical incision is smaller, less injury, safety is improved, and the probability of complications such as infection and poor healing is reduced, but it may increase the risk of cancer cell metastasis, and the indications for surgery should be strictly screened. 2. Minimally invasive surgery with robot-assisted technology: using da Vinci robotic surgical system, it can effectively locate the tumor and improve the effective resection rate. The robot can also reflect the lymphatic status to enhance the treatment effect. Whether minimally invasive surgery can be performed or not, it needs to be analyzed by the doctor according to the specific situation, and it should not be decided without authorization. If you are suffering from breast cancer, you should treat it in time so as to avoid spreading and progressing of the disease.