Primary infertility is when a pregnancy has never been achieved by a person, and secondary infertility is when at least one prior pregnancy has been achieved.
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生育保健包括不孕不育症预防、诊断和治疗。
Fertility care encompasses the prevention, diagnosis and treatment of infertility.
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在大多数国家，特别是在低收入和中等收入国家，平等和公平获得生育保健服务仍是一大挑战。
Equal and equitable access to fertility care remains a challenge in most countries; particularly in low and middle-income countries.
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在国家全民健康覆盖福利计划中，生育保健很少被列为重点服务。
Fertility care is rarely prioritized in national universal health coverage benefit packages.
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导致不孕不育的因素
What causes infertility?
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不孕不育可能由男性或女性生殖系统多种因素引起。
Infertility may be caused by a number of different factors, in either the male or female reproductive systems.
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但有时无法解释不孕不育原因。
However, it is sometimes not possible to explain the causes of infertility.
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女性不孕可能由以下原因引起：
In the female reproductive system, infertility may be caused by:
tubal disorders such as blocked fallopian tubes, which are in turn caused by untreated sexually transmitted infections (STIs) or complications of unsafe abortion, postpartum sepsis or abdominal/pelvic surgery;