From the perspective of prevention, the main problem is that women of childbearing age are not aware of taking the initiative to prevent and treat breast cancer. Some women with physical examination conditions did not have physical examination on time due to various reasons such as busy work and business trip, which led to missed diagnosis of breast cancer. Breast cancer prevention suggestion: 1. Regular self-examination of breasts can help you get familiar with the feeling of breasts at different times of the month. If abnormal breast changes are found, you should seek medical attention immediately and accept clinical breast examination. Women over the age of 35 receive a clinical breast examination once a year. If mammography or ultrasound examination finds a lump in the breast, biopsy is needed to distinguish whether the tumor cells are benign or malignant, so as to prevent the occurrence of breast cancer at an early stage. 2. People with a family history of breast cancer should always check themselves, and seek medical advice and early treatment for benign lesions such as mammary gland hyperplasia, ductal dilatation and milk stasis. The age of primipara should not exceed 30. Advocating breastfeeding and proper breastfeeding methods can reduce the risk of breast cancer. Do not abuse hormone health care products, reduce the use of beauty skin care products and cosmetics containing estrogen harmful to human health and long-term use of oral contraceptives. Menopausal women avoid long-term excessive use of estrogen. 3. Self-regulate your mood, reduce mental stress and keep a relaxed mood. Stay away from smoking, drinking and radiation, increase physical activity, and participate in outdoor activities beneficial to physical and mental health. Rationalize the diet structure, eat less high-calorie and high-fat foods at ordinary times, and eat more low-fat and high-fiber foods such as fruits, vegetables, cereals and beans to reduce estrogen that may cause breast cancer in the body and reduce the incidence of breast cancer. Health education is a series of activities and its process with the means of communication, education and intervention, aiming at helping individuals and groups to change unhealthy behaviors and establish healthy behaviors, and aiming at promoting health.