The vagina is a microecosystem with billions of microorganisms. They protect the female reproductive tract and reduce gynecological infections
Disruption of this ecosystem leads to pathogen overgrowth with complicated Vaginal infections / Vaginitis. Factors like menses, pregnancy, and sexual practices contribute. Uncontrolled antibiotic use and vaginal douching also alter the microbial community
The majority of bacteria in the the female reproductive tract (FRT) reside in the vagina
Newborn gut microbiota is similar the mother's vaginal flora (rich in lactobacilli)
From the eight phyla that we observed in the vaginal ecosystem, Firmicutes constituted the vast majority of vaginal microbiota in healthy women, while Bacteroidetes, Actinobacteria and Fusobacteria were strongly associated with Bacterial vaginosis
see also:
Bacterial vaginosis
Chlamydia trachomatis
Development of Gut Microbiota
Female reproduction tract (FRT) & Gut microbiota