Effect of Escherichia coli on Semen Quality of Infertile Human Male

Abstract

Male genital tract infections are one of the most major causes of infertility worldwide. It is expected that about 15% of male infertility is due to genital tract infections. These infections may contribute to deterioration of various sperm parameters, especially in infertile men. The negative effects of many bacteria on human spermatozoa have been widely reported. The aim of this study was to investigate the effect of Escherichia coli on the semen of infertile men and their effect on sperm quality. Sixty seven semen samples of infertile males were investigated by standard bacterial culture methods. WHO guidelines were followed to perform standard semen analysis. We found that E. coli was present in infertile males and there was a relation between E. coli infection and semen quality.