The aim of this study was to retrospectively
evaluate the effects of male age and ejaculatory abstinence on semen parameters
and reproductive hormones among men residing in Africa and the Middle East.A total of 70,142 semen analysis results were
analysed and grouped according to the age intervals (16 - 20, 21 - 30, 31 - 40, 41 - 50, 51-60, >60) and ejaculatory abstinence (<2 days,
2-5 days and >5 days).Semen parameters i.e.volume, concentration,
progressive motility, total progressively motile count,morphology,total normal sperm count, DNA fragmentation, viability, sORP, normed sORP
were specifically evaluated. Additionally, for each age interval,reproductive hormones i.e. estradiol, luteinizing hormone, follicle stimulating hormone,
testosterone and prolactin were evaluated.Semen volume, total
progressively motile count, sperm morphology and total normal sperm count
constantly decrease significantlyafter the age of 30 years.
Sperm
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