Background: Bacterial infections on male infertility has always been in the field of debate due to scarce analysis tools to examine seminal fluid specimens as a result of which these infectious processes leads to deterioration of spermatogenesis, impairment of sperm function and/or obstruction of the seminal tract. Aims & Objective:In the current study we investigated the role of bacterial infections in male factor infertility in Al-Anbar Province, West of Iraq through detection of abnormal sperms and other factor pertains to male infertility. Material and Methods: Seminal fluid from six hundred volunteer males was investigated for infertility by the detection of abnormal sperms using the WLJY-9000 TYPE WEILI Color Sperm Analysis System and the Neubauer counting chamber. Results: From the six hundreds patients investigated for infertility, it was found that 408 (68%) patients had a positive culture for pathogenic bacteria, of different species. The results indicate that 32.0% had sperm density less than twenty million per millilitre. The oligospermic were 23.0%, severe oligospermic 0.17% and Azoospermia 8.83%. Asthenospermia was reported to be 76.33% and Teratospermia 86.16% respectively. Conclusion: Seminal fluid infection increases with decreasing sperm density, motility and morphology. The prevalence of abnormal sperm indices and bacterial infection is high with Klebsiella spp. infection. Hence, treatment measures should be taken properly in the management of male factor infertility.