Review of the literature devoted to the influence of some environmental factors in pre-consumated period on the father and the effects of these actions on his male descendants. It was found that rats’ male offspring who were born after father’s excessive consumption of phytoestrogens and with intact females, were with delay in sexual development. In adult male offspring who were born after father’s excessive consumption of phytoestrogens had observed hormonal imbalance, violation of sexual behavior. And also it was shown suppression generative function of testes and all these processes negatively effect of their reproductive potential.