”Breast cancer” and “the end of the world” have become the buzzwords in 2012, and on the first day of the New Year, CCTV joined us in remembering “Yu Juan”, a young breast cancer patient. This life is not finished” is her reluctance to give up her life, but also a warning to us! “What else can we do besides fearing breast cancer? Is there any possibility of prevention, control and cure for breast cancer? Breast cancer cannot be detected by self-examination. According to the survey of World Health Organization, 1/3 of tumor patients can be “early detected, early diagnosed and early treated”, so that the tumor can be completely cured, and breast cancer is one of them. How to detect breast lesions at an early stage? Apart from regular breast examination, we need to remind you that we cannot rely on self-examination to detect breast cancer. Traditionally, the detection of breast lesions mainly relies on clinical examination and women’s self-examination. However, clinical studies have shown that the detection of breast cancer by regular breast self-examinations does not reduce the mortality rate. Instead, it is the mammography screening for the purpose of breast cancer screening in Europe and the United States that has led to the decline in breast cancer mortality, in order to detect early breast cancer (especially breast cancer with calcified foci as the main manifestation) that is difficult to detect by clinical physical examination or self-examination. Therefore, annual mammography screening is recommended for women over 40 years of age, and for women over 35 years of age and under 40 years of age with risk factors for breast cancer, annual mammography screening is also recommended, and for women under 35 years of age, mammography screening is recommended every 6 months-12 months.