The vaginal microbiota of healthy women of reproductive age is characterized by a wide variety of microorganisms,with Lactobacilli being the predominant group.Lactobacilli play an important role in maintaining the balance of vaginal microbio-ta.When there is an imbalance in the acidity and alkalinity of the vagina,a structural disorder in the bacterial community,or a de-crease in local immune function,the balance of the vaginal microbiota is easily disrupted,and even vaginal infections occur.The disturbance of vaginal microbiota not only affects women's quality of life,but also has a correlation with adverse perinatal outcomes during pregnancy,affecting maternal and fetal health.Therefore,this article provides a comprehensive review of the research on the vaginal microbiota during pregnancy and its correlation with perinatal outcomes.
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