UDC 612.616:612.015.11:612.014.484

About 15% of married couples in the world suffer from infertility. In approximately 50% of cases, the main problem lies in the male factor. Male infertility is a multifactorial syndrome that encompasses a wide range of disorders. Infertility in men without an established history is called "idiopathic infertility". The aim of the work was to compare reproductive function of men according to spermogram indicators for both a control (normozoospermia) and an experimental (idiopathic infertility) groups. The study consisted in studying spermogram indicators in patients of both groups according to WHO recommendations and comparing them with each other and with reference values. Comparison of physicochemical indicators of ejaculate revealed that the volume of ejaculate in groups II and I did not reliably differ from each other, as did the pH indicator. The indicators of the time of dilution of ejaculate in persons with idiopathic infertility significantly increased (by 1.4 times) in comparison with men of the control group. Reliable violations of the quality indicators of ejaculate, characterized by a decrease in sperm motility by 1.6 times, were revealed. The number of immobile spermatozoa was 1.7 times higher in idiopathic infertility compared to control values. A 1.8-fold decrease in the concentration of fructose in the ejaculate correlated with pronounced processes of sperm motility and viability impairment. The indicator of the concentration of citric acid, which reflects the functional state of the prostate gland and the endocrine function of the testicles, was 1.7 times higher in patients with idiopathic infertility compared to the control group. The content of zinc in seminal fluid differs most between infertile men and men of the control group, it was 3.4 times lower in men with idiopathic infertility. Thus, the obtained data on the indicators of spermograms denote that reproductive problems in men with idiopathic infertility consist in a reliable violation of the qualitative indicators of ejaculate especially in reduced mobility. Which correlates with changes in the index of liquefaction time, which increases and biochemical indicators (decrease in the concentration of fructose, citrate and zinc) compared to ejaculate indicators in men with normozoospermia.