Abstract
If 60-70 years ago infertility was almost unknown or single families have had this problem, today it affects about 14% of couples of childbearing age, and this percentage tends to grow. A number of studies have shown that at about 40% of couples, infertility is due to changes in spermatogenesis. Infertility itself does not threaten the physical health of men, but creates a strong impact on mental and social well-being of married couples. Despite advances in modern urology, between 40% -50% of men, the diagnosis is `idiopathic infertility`. Thus, the term `unexplained infertility` is becoming one of the most established diagnoses.The present study was to determine the infertility distribution among a group of men with fertility problems, age range when it is observed, and the associated morphological defects in comparison to the WHO criteria. The study examines the extent of infertility, age groups and morphological characteristics of semen analysis in context to their possible role as factors for the infertility.The results obtained clearly reflect the global trend of harmful factors growth affecting spermatogenesis associated with lower sperm quantitative and qualitative indicators by the contemporary men.