根据世界卫生组织的统计,女性乳腺的发病率具有逐年上升的趋势。而在我国,乳腺疾病在妇女各类疾病中已居首位。成年女性的发病率约占40—50％;乳腺癌在女性恶性肿瘤中已跃居第一位。资料统计还表明,经济越发达的国家与地区,其发病率越高,比如在美国,平均每8名妇女中就有一名患乳腺癌,即发病率高达12.5％。 According to the statistics of the World Health Organization, the incidence of female breast has a tendency of increasing year by year. In our country, however, breast disease has topped the list of all women’s diseases. The incidence of adult women accounts for about 40-50%; breast cancer has ranked first in female malignant tumors. Data statistics also show that the more economically advanced countries and regions, the higher the incidence, such as in the United States, an average of every 8 women suffering from breast cancer, the incidence rate as high as 12.5%.