ABSTRACT
Infections are one of the correctable causes of infertility with low cost and cost effective treatment. The 50% of infertile cases is related to men in some way, and 30% of them are absolutely related to them. Mycoplasmas are the smallest microorganisms with capability of DNA replication. Present study is planned to compare the mycoplasma infection in infertile men and men with established fertility. 45 Semen samples were collected from case and control persons who referred to Royan Infertility and Fertility Institute between 2004 and 2005 and stored in -20 degree°C until time of test. DNA was extracted from semen using phenol chloroform. PCR reaction was done by mycoplasma specific primers. Mycoplasma genitalium gene was amplified in 6 [40%] cases from 15 infertile semen samples and 11 [36.6%] from 30 control semen samples. Probability of genital infection, at least, in these studies group, is very lower than other communities' reports