The Influence Of The Reproductive System Microbiota On Female And Male Fertility. The Role Of Lactobacillus Bacteria

It is well known, that vaginal microbiota is dominated by Lactobacillus genus. These bacteria protect a vaginal microenvironment against the invading pathogens. The presence of Lactobacillus communities was already confirmed in an upper female reproductive system, as well as in the male reproductive system and semen. In this paper we present the current state of knowledge about the influence of the Lactobacillus species on female and male fertility. We also discuss the possible role of the reproductive system microbiota in an idiopathic infertility, and the association between Lactobacillus species and effectiveness of assisted reproductive techniques. Further research on the relationship between the reproductive system microbiota and human fertility is needed.