Patterns of hormones in the seminal plasma correlated with sperm count and motility.

Seminal plasma FSH, LH, prolactin, and testosterone were estimated in 110 men with wives with no pregnancy during the last 24 months and 20 fertile males. Seminal FSH and LH levels were significantly higher in oligozoospermic men (sperm count over 10 X 10(6)/ml) and in males with reduced motility than in fertile men. Males with severe oligozoospermia (sperm count below 10 X 10(6)/ml) had values of gonadotropins similar to fertile subjects. Seminal prolactin levels were significantly elevated in all infertile males. Men with sperm count under 10 X 10(6)/ml had significantly lower seminal testosterone values than the other infertile and fertile men.