The vagina is home to hundreds of microbes, good and bad, but the key ‘good’ bacteria is lactobacilli, which plays an essential role in preventing infections and keeping the vagina healthy.
In a healthy vagina, lactobacilli dominates the vaginal microbiome when oestrogen levels are maintained. When oestrogen levels start to fluctuate and drop, as they do during menopause, the pH of the vagina starts to change.
This change in pH results in a shift in the ratio of the lactobacilli species. This is reflective of menopausal symptoms, such as vaginal atrophy, hot flushes, and the myriad of other symptoms associate with menopause.