乳腺癌是女性最常见的恶性肿瘤之一,20世纪末的统计资料表明,全世界每年均有130万人诊断为乳腺癌,而有40万人死于该病。在我国,随着社会压力及生活环境的变化,乳腺癌发病率不断上升,更有年轻化的趋势,在一些大城市已跃居肿瘤之首[1],农村中排名第5位。乳腺癌已经成为妇女健康的最大威胁,所以,乳腺癌的防治任重而道远。近年来,人们发现了一些对乳腺癌非 Breast cancer is one of the most common malignancies in women. Statistics from the late twentieth century showed that 1.3 million people worldwide diagnosed with breast cancer each year and 400,000 people die from it. In our country, with the change of social pressure and living environment, the incidence of breast cancer is rising and younger. It has risen to the top of tumors in some big cities [1], and ranks fifth in rural areas. Breast cancer has become the biggest threat to women's health, so prevention and treatment of breast cancer have a long way to go. In recent years, people have found some non-breast cancer