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子宫内膜异位症引起不孕的原因

来源:华人健康网 | 发布时间:2010-11-05 11:08:28 | www.chinesejk.com

  据统计,患子宫内膜异位症者有41.5~43.3%的人不孕,占继发性不孕的46.6~47.3 %,其原因并不很清楚。多数人认为,与盆腹腔异位内膜病变造成的粘连引起输卵管功能失常、管腔堵塞有关,从而影响了卵子的收集和运行而致不孕。但也可能与卵巢病变影响正常排卵有关。此外在子宫内膜异位症与不孕症之间还可能存在互为因果的关系。由于婚后久不受孕,体内孕激素水平偏低,失去了对子宫内膜及异位内膜生长的抑制作用,使症状更加严重;又由于异位内膜出血后蛋白质的吸收可导致自身免疫反应增强,引起体内前列腺素分泌增多,从而抑制排卵,或促使黄体溶解,以致不能维持早期妊娠而流产。

(编辑:淡淡 )

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