口服避孕药(OC)于30年前问世,其与乳腺癌之间的关系已有50多篇研究文章,结论不一,一般认为无关,某些研究组认为危险性增加,这种增加只是对年轻妇女有短暂影响,还是影响一直延续到老年期?荷兰是世界上使用OC比例最高的国家,有条件研究各年龄直至55岁妇女长期使用OC与发生乳 Oral contraceptives (OCs) were introduced 30 years ago. The relationship between breast cancer and breast cancer has been more than 50 articles. The conclusions are not consistent and generally considered irrelevant. Some research groups believe that the increase in risk is only Do young women have short-term effects or do they persist until they reach old age? The Netherlands is the country with the highest proportion of OC use in the world. It is conditional on the long-term use of OC and occurrence of milk among women of all ages up to 55 years of age.