Etiology, Investigation and Treatment of Human Men’s Infertility

Infertility is a worldwide reproductive health and emotionally charged problem that affects approximately 15% of married couples. In recent years, male infertility has increased in the industrialized countries due to a decline in sperm counts and a rise in testicular and sperm pathologies. There seems to be a direct relationship between modern lifestyles and declining male fertility and the statistics are alarming. In this review, etiological factors of human male infertility known up to date and the techniques employed in fertility research are evaluated.