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Definition

By Mayo Clinic staff

An estimated 10 percent to 15 percent of couples are classified as infertile, which means that they've been trying to get pregnant with frequent, unprotected intercourse for at least a year with no success.

In about half the cases, male infertility is a factor. Causes of male infertility include abnormal sperm production or function, impaired delivery of sperm, general health and lifestyle issues, and exposure to certain environmental factors.

Even if male infertility is a factor, the female partner also may have something going on that interferes with conception. You and your partner may both need treatment to achieve pregnancy. But don't get discouraged. A number of tests and treatment options make it possible to diagnose and overcome most causes of male infertility.

DS01038

June 14, 2008

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