Reproductive functions are the most important functions in every living organism to continue their species. Different interferences with an organism`s functions can evolve into infertility: vascular, neurogenic, endocrine, immune, psychological state, and even dietary habits.
According to official WHO data, the frequency of infertile marriages, which is about 10-15% of the total number of married couples, does not appear to be decreasing. According to European experts, about 10% of couples have an infertility problem. Attention is drawn to the upward trend in the proportion of male factors in sterile marriages. According to the latest study, the male “contribution” to infertile marriages is starting to dominate over the female`s. Over the past 20 years, “contribution” has increased from 30% to 50% and continues to grow steadily. Clear proof of this is the quality of ejaculate. Analysis of normal a man`s semen parameters in the 20th and early 21th century concludes that in 1949, the norm was about 60-300 million spermatozoid in 1mL of ejaculate, but in 2009, there was only 12-20 million in 1mL of ejaculate. Over the past half century, sperm count has decreased by almost 3 times. Such a trend indicates the progressive deterioration of ejaculate quality.