Breast cancer (mammary cancer) is one of the most common malignant tumors in women, accounting for 7-10% of all malignant tumors in the body, second only to uterine cancer in women, and has become a major cause of threat to women’s health. Its incidence is often associated with heredity, as well as a higher incidence in women between the ages of 40-60, before and after menopause. It is one of the most common malignant tumors that usually occurs in the glandular epithelial tissue of the breast and seriously affects women’s physical and mental health and even endangers their lives. Breast cancer is rare in men, and only about 1-2% of breast patients are male.