There are certain dangers in the surgical process of breast cancer, which are low and patients need not worry too much. Breast cancer is a series of clinical symptoms caused by uncontrolled proliferation of breast epithelial cells, which leads to progressive malignant changes. Early breast cancer symptoms are generally not obvious and can be dominated by local symptoms such as breast lumps, nipple leakage, nipple and areola abnormalities. Surgery is generally the preferred treatment option for breast cancer. Any surgery carries a certain amount of risk, and a smaller amount of risk exists during breast cancer surgery. The dangers mainly include blood loss, shock, tissue damage, etc. The chances are small and patients need not worry too much. Surgical treatments such as breast preservation surgery, total mastectomy, radical surgery, modified radical surgery, etc. can be performed when the physical condition permits. Patients who have undergone breast cancer surgery need to take into account their own conditions and ask their attending doctors for guidance. After the surgery, patients need to ensure that the local skin is clean to avoid secondary infection.