Seminal characteristics and sexual behavior in men of different age groups: is there an aging effect?

Asian Journal of Andrology
P ZavosS Sikka

Abstract

To assess the seminal characteristics as well as the sexual behavior of men of various age groups to establish the presence of an aging effect on those characteristics. Semen samples were collected from men (n = 792) undergoing in vitro fertilization or intrauterine insemination in cases of female factor infertility only. Samples were collected using a seminal collection device at intercourse and evaluated manually according to World Health Organization (WHO) standards. Men were divided into four groups according to their ages: (i) 20-30, (ii) 31-40, (iii) 41-50 and (iv) 51-60 years, and their seminal characteristics and responses to a sexual behavior questionnaire were compared. The data showed statistically significant differences in the seminal characteristics tested, most notably in the sperm concentration, motility, grade of motility, hypo-osmotic swelling and normal sperm morphology. Furthermore, the decline in normal sperm morphology with age was more pronounced when using strict criteria rather than WHO standards. There were also differences in total sperm count, total motile sperm and total functional sperm fraction (assessed by both WHO and strict criteria). Significant differences were also observed in the sexual beh...Continue Reading

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Citations

Feb 26, 2013·Asian Journal of Andrology·Yu XiangZheng-Wei Yang
Dec 27, 2013·Asian Journal of Andrology·Kai ZhangHui Jiang
Jun 25, 2014·The Journal of Family Planning and Reproductive Health Care·Gerald Lawson, Richard Fletcher
Nov 27, 2009·Journal of Medical Engineering & Technology·Jong Yong Abdiel Foo
Jun 24, 2008·Systems Biology in Reproductive Medicine·Julia J WirthMichael P Diamond
Dec 3, 2014·Ageing Research Reviews·Sheri L JohnsonShinichi Nakagawa
Sep 24, 2016·Reproductive Toxicology·Pheruza TaraporeShuk-Mei Ho

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