Breast cancer is the number one cancer among women, and it is a typical red-faced killer. We all seem to know that there are a lot of people who get breast cancer, but we do not really know the extent to which there are a lot of people who get breast cancer, and because of this, we are bound to be psychologically lucky. In order to give you a better understanding of breast cancer, here is a brief introduction of how close breast cancer is to you. Breast cancer is a very common malignant disease worldwide, and is the most common malignant tumor among women worldwide, topping the list of female malignant tumors (cancer) and also one of the most deadly malignant tumors. The age of onset is getting younger and younger, which is a serious threat to women’s life and health. Worldwide, the incidence of breast cancer remains high in high incidence regions (North America, Europe and other countries), while the former so-called low incidence regions are also increasing (developing countries represented by China). According to recent statistics, breast cancer will overtake lung cancer as the number one cancer among women, and the number of deaths from breast cancer will account for 15% of all cancer deaths among women, making the prevention and treatment situation very serious. However, the number of breast cancer cases in China has been increasing year by year in recent years. According to the current trend, the incidence of breast cancer in China will follow the footsteps of European and American countries and will be on a rapid rise, and the age of incidence is getting younger and younger. Especially in Shanghai, Beijing, Tianjin and coastal provinces, the incidence of breast cancer is significantly higher, and in large cities, breast cancer has become the first cancer among women. The International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) estimated that the standardized incidence rate of female breast cancer in China was 21.6 per 100,000 in 2008, and due to the huge population base in China, the number of new breast cancer cases can reach 169,000 per year, accounting for 12.25% of the total number of cases worldwide, ranking second only to the United States (182,000 cases). The number of breast cancer cases in China is expected to reach 234,000 cases per year in 2030, resulting in about 70,000 breast cancer deaths per year. Take a look at this information to understand how fast breast cancer is growing in China! According to authoritative statistics, the annual growth rate of breast cancer in the United States is 0.399% for whites, 1.071% for blacks, 2.332% for Tianjin, 3.212 for Shanghai, and 1.241% for Hong Kong between 1993 and 1997, compared to 1983-1987. The latest data shows that the growth trend of breast cancer in China is more obvious, which is a very good indication that the problem of female breast cancer in China is getting more and more serious! According to the data from Beijing Cancer Prevention and Treatment Research Office, there were 4,311 new cases of breast cancer in Beijing in 2012, with an incidence rate of 64.63/100,000, making it the malignant tumor with the highest incidence rate among women. The age of onset of breast cancer: it is relatively rare before 20 years old, after 25-30 years old, the incidence of breast cancer gradually increases, higher at 40-50 years old, and the incidence continues to increase after menopause. The current age of breast cancer incidence is getting younger and younger.