Bacterial vaginosis (BV) is a common vaginal disorder in woman in child bearing age associated with adverse outcomes including preterm birth and acquisition of sexually transmitted diseases and pelvic inflammatory disease. This condition is highly unfavorable and causesvaginosis severe complications related to reproductive system of women. According to literature reports, it has affected 10%-20% of Caucasian women and 30%-50% of African-American women. It has also found its prevalence in US where 29.2% women were reported with vaginal symptoms including 51.4% non-Hispanic blacks, 31.9% among Mexican Americans, and 23.2% among non-Hispanic whites. Its prevalence is 14.6% in Thai. BV was also reported among woman with vaginal symptoms in Rwanda as showed by Gram stain examination. Further insight into the pathology in other BV affected Rwandan women populations is needed to give a clear picture. Epidemiological studies indicate that there is a risk of BV in women of African ethnicity.