Semen Quality and Sex Hormone Pattern of 39 Middle Aged Men

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Abstract
Men (39) with sexual disturbances in middle-age (52-68 yr) were included in this study. Semen samples were obtained by masturbation and were analyzed. Serum was prepared and analyzed for FSH, LH [luteinizing hormone], prolactin and testosterone. Results were compared with the values obtained in a recent study on a young fertile group. Hormonal evaluation revealed a significant increase in FSH, LH and prolactin concentrations. Testosterone levels were not different in the 2 groups (old vs. young). Accessory gland functions were depressed, semen volume decreased by 30% and fructose secretion by the seminal vesicle was diminished significantly. The average sperm concentration and morphology were not different than in young group but their quality in terms of motility and vitality was depressed. Sperm production by the testes was decreased by 30% compared to the young control group. Increased serum prolactin levels and elevated estrogen activity may be responsible for the sexual disturbances known in older men.