INFO:
经血逆流症状是腹痛，经血逆流是宫腔内月经血通过输卵管流到腹腔，刺激腹膜引起疼痛，即痛经，包括原发性痛经、继发性痛经、渐进性痛经。临床中发生经血逆流的患者较多，如果输卵管畅通，宫颈条件不佳，在排经血时子宫处在收缩状态下，可能发生经血逆流。经血

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经血逆流的症状是什么

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