This study was designed to study the associations between the bacterial vaginosis of pregnant women and the development of preterm birth. 167 pregnant women who visited the antenatal clinic between 24 and 32 weeks of the gestation were included in the study. Bacterial vaginosis was diagnosed using Gram stain of vaginal smear. The study population were observed until delivery without interventions. The incidence of preterm birth, low birth weight and PROM were analyzed according to the presence or absence of the bacterial vaginosis. The results were as follows: 1. The prevalence of bacterial vaginosis of the pregnant women was 18%. 2. Increased Gardnerella among the vaginal flora was associated wih the increased incidence of preterm birth and PROM(P<0.05). 3. Bacterial vaginosis were classified by BV score. Intermediate group showed the highest incidence of preterm birth, low birth weight and PROM(p<0.01).
The study results suggested that Bacterial Vaginosis of pregnant could be one of the risk factors developing preterm birth and/or PROM. Further studies will be warranted.