The primary function of a healthy vaginal microbiome is to maintain an acidic environment through the production of lactic acid by Lactobacillus species.
This acidic environment is crucial as it prevents the overgrowth of harmful pathogens, including bacteria and yeast, which can cause infections. By keeping the pH low, typically around 3.8 to 4.5, Lactobacillus species create an inhospitable environment for many potential pathogens. Additionally, these beneficial bacteria produce other antimicrobial substances that further enhance their protective role. Overall, the balance and health of the vaginal microbiome are essential for preventing infections and maintaining overall vaginal health.

Source of information:

Reference #1:

Reid, G. and Burton, J. (2002) The Role of Lactobacilli in Maintaining Vaginal Health. Springer, New York.

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