...明确不孕病因是治疗的前提，不孕不育的从病因上分为为原发性不孕症(Primary infertility)和继发性不孕症(Secondary infertility)两大类： 原发性不孕症就是指从来没有怀孕过的病人，称为原发性不孕症;而继发性不孕症就是指过去曾经怀孕过，但是结果是流产，子...
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有过至少1次堕胎经历的女性，继发性不孕症的风险是没有堕胎经历的女性的3 - 4倍。
The risk of secondary infertility among women with at least one abortion is 3 to 4 times greater than that among women who have not aborted.
原发性不孕症患者输卵管功能轻度受损20.3%，重度受损11.9%；继发性不孕症患者输卵管功能轻度受损14.9%，重度受损17.9%。
Besides, the mild and severe functional abnormality of fallopian tube in patients of primary and secondary infertility were 20.3% and 11.9% versus 14.9% and 17.9% respectively.
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