What causes female fertility problems?

导致女性生育能力下降的原因有哪些？

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The researchers believe the work could eventually help men with fertility problems to conceive.

研究人员们相信这项工作最终可以帮助那些患有不育症的男性拥有属于自己的孩子。

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Because the data are based on men with known fertility problems, it's not clear whether the results apply to all men as they age.

因为这些数据是以有已知生育问题的男性为基础而得出的，所以还不清楚它是否适用于同年龄的所有男性。

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Other chronic health problems reported by the veterans include cancers, skin defects and fertility problems.

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According to the Center for Disease Control, 7.3 million people in the U.S. suffer fertility problems.

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Naturopathic education, such as it is, is insufficient to treat heart disease, fertility problems, or cancer.

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