Can breast cancer be prevented? According to epidemiological studies on breast cancer, breast cancer is completely preventable if the effects of breast cancer risk factors are well controlled and eliminated. There are two lines of defense that individuals can build to prevent breast cancer: one is etiological prevention so that breast cancer does not occur; the other is early detection to ensure that even if breast cancer occurs, the best treatment outcome can be obtained. Etiological prevention requires the following steps 1. Learn to understand the risk factors of breast cancer and sort out how many risk factors you have, in order of priority and influence. It is better to have a systematic consultation with a specialist who has knowledge and experience in this field, so as to clarify the status of risk factors you carry. 2.Establish interventions for risk factors under the guidance of doctor and stick to them. 3.When you have abnormal indicators, poor physical condition, or are in the concentrated effect of risk factors, you can use Chinese medicine to regulate on the basis of Chinese medicine identification. If necessary, use western medicine for prevention. 4. At the same time, regular breast examination and regular follow-up in regular hospitals with good breast specialist conditions can detect suspicious lesions and precancerous lesions, and timely surgical removal of lesions to avoid their development into invasive breast cancer. Following the above methods for individual prevention of breast cancer can effectively prevent the occurrence of breast cancer.