Abstract
In this study, 220 vaginal swabs were collected from pregnant women in three trimesters infected with bacterial vaginosis in Mosul city. They were diagnosed by the gynecologists. The isolation and identification of some bacterial species causing (B.V.) were done especially Streptococcus agalactiae (Group B. streptococci) (GBS). Different species of gram positive and negative bacteria were isolated from vaginal swabs in different percentage with predominance of GBS (18.2%) followed by Gardnerella vaginalis and Escherichia coli 11.8% and 11.4% respectively, while the lowest percentage (4.5%) in Haemophilus influenzae.