Diagnostic Tests

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Semen analysis is used to evaluate male fertility—a man's ability to reproduce. This test, which also is called a sperm count, is used to measure the amount and quality of seminal fluid or ejaculate. Seminal fluid contains male reproductive cells (semen or sperm) and normally is expelled through the penis during ejaculation (sexual climax; orgasm).

Semen analysis also can be used to help diagnose Klinefelter's syndrome, which is the most common congenital (inherited) cause for testosterone...Read the full article