妇女一生中,随着性腺的发育与衰退,在各个生理时期会出现一些特殊的生理现象,也会受某些因素的影响而发生病理变化。月经初潮和绝经、分娩方式和分娩次数等与妇女肿瘤关系密切。流行病学研究表明,这些因素均与女性乳腺癌、子宫内膜癌、卵巢癌、宫颈癌、绒毛膜上皮癌等常见肿瘤 Women’s life, with the development and decline of gonads, in each physiological period there will be some special physiological phenomena, but also by some factors affect the pathological changes. Menarche and menopause, mode of delivery and the number of births and other women’s tumors are closely related. Epidemiological studies have shown that these factors are associated with female breast cancer, endometrial cancer, ovarian cancer, cervical cancer, choriocarcinoma and other common tumors