Psychological stress has a greater impact on breast cancer. With the process of social development, modern women are under greater pressure, including work pressure, life pressure, family pressure, and more women have poor rest and sleep, which often affects women’s endocrine function, causing estrogen level to rise and progesterone level to fall, increasing the incidence of breast cancer. At present, more and more women have infertility problems, mostly related to hormone dysfunction. Female friends should pay attention to maintain a good state of mind, relax, increase aerobic exercise, avoid staying up late, irregular diet and other bad habits, which is very important for the prevention of cancer.