Common Bacterial Isolates Associated with Semen of Men Complaining of Infertility in University of Benin Teaching Hospital (U.B.T.H), Benin City, Nigeria

Fifty (50) seminal samples were studied to determine the microbial influence in male infertility as well as the qualitative and quantitative features of the semen. Among the three bacterial isolates isolated from the sample, Staphylococcus aureus 7(77.8%) was found to be the most predominant isolate, other isolates were Escherichia coli 1(11.1%) and Citrobacter spp. In relation to semen concentration Staphylococcus aureus was observed to be most frequently distributed among the characterized semen. The recovery frequency of organisms associated with the semen types revealed that 2(40%) of organisms were recovered of azoospermia, 6(20.68%) oligozoospermia and 1(6.25%) normozoospermia. The motility of the semen was greatly influenced by the presence of the bacterial isolates. The motility of semen was recorded to be 20%, 10% and 45% for Staphylococcus aureus, Escherichia coli and Citrobacter sp. respectively, as against the normal semen motility of 50% or more. The presence and profound influence of microorganisms in semen is evidence that microorganisms played significant role in male infertility.