子宫内膜异位症(endometriosis,EM)是生育期妇女常见疾病之一,主要表现为痛经、慢性盆腔痛以及不孕(50%)。EM发病率逐年上升,但其发病机制尚不清楚,目前仍以经典学说中的经血逆流种植学说最受支持。但在围月经期输卵管通畅的妇女中90%有经血逆流现象,仅少数发生EM,提示尚有其? Endometriosis (EM) is one of the most common diseases in women of reproductive age. It is mainly characterized by dysmenorrhea, chronic pelvic pain and infertility (50%). EM incidence increased year by year, but the pathogenesis is not yet clear, is still the classic doctrine of the theory of blood flow countercurrent implantation is most supported. However, in the perimenopausal women with tubal patency, 90% of menstrual reflux phenomenon, only a small number of EM, suggesting that there are still?