Randomized Trialhigh evidence

The effect of hormone therapy on vaginal microbiota in women with genitourinary syndrome of menopause: A double-blind, randomized, placebo-controlled trial.

Maturitas·June 1, 2026·PMID 42097107

Why it matters

It clarifies that systemic MHT’s clinical benefits for GSM are not dependent on restoring a lactobacillus-dominant vaginal microbiome, which may influence counseling about expected mechanisms and timing of symptom relief.

Infographic summary of The effect of hormone therapy on vaginal microbiota in women with genitourinary syndrome of menopause: A double-blind, randomized, placebo-controlled trial.
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