继发性不孕（secondary sterility）是指女性以前有过妊娠，而后连续1年未避孕未孕。
目的探讨生育前药物流产后继发性不孕的主要原因。
Objective To explore the main reason of secondary barrenness resulted from drug miscarriage before childbearing.
如果您是继发性不孕患者，请及时向您的健康顾问人员咨询。
If you're experiencing secondary infertility, talk to your health care provider.
有时候，继发性不孕的原因可能与第一次怀孕时产生的并发症有很关。
Sometimes, however, secondary infertility stems from complications related to prior pregnancies.
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