卵巢子宫内膜异位症的发病率在外生性子宫内膜异位症中居首,植木资料为74.20%,单侧受累占25.80%,双侧受累者占67.08%;三木资料为80%,其中形成巧克力囊肿的占60～30%;中村资料为77.5%,形成巧克力囊肿的占81.5%。可见卵巢子宫内膜异位症发病率高,双侧受累的多,囊性变的多。其发病率之所以高,以综合性学说加以解释,第一是经输卵管直接移植说,卵管伞与卵巢密切,经血逆流直接移植到卵 The incidence of ovarian endometriosis was the highest in exogenous endometriosis, including 74.20% for wood planting, 25.80% for unilateral involvement, 67.08% for bilateral involvement, and 80% for Miki. The formation of chocolate cysts accounted for 60 to 30%; Nakamura data was 77.5%, the formation of chocolate cysts accounted for 81.5%. Visible high incidence of ovarian endometriosis, bilateral involvement, cystic degeneration and more. The reason why the incidence of high, to explain the comprehensive doctrine, the first is the direct transplanted tubal, oviduct and ovary closely, menstrual blood transplanted directly to the egg