01 · Review · Microorganisms
The gut–vagina axis (2026)
Examines bacterial movement, hormonal pathways, immune signalling and the developing scientific framework connecting the two microbiomes.
Read the publication ↗The gut microbiome.
Your gut is about more than digestion.
We've all heard about gut health. But its influence reaches far beyond what happens after we eat.
Home to trillions of microorganisms, your gut microbiome plays a role in digestion, metabolism and immune function.
And growing research is revealing another fascinating connection: its relationship with female hormones and the vaginal microbiome.
A whole world within.
Your gut is home to one of the body's most diverse microbial ecosystems.
These microorganisms help break down food, produce beneficial compounds and interact with the immune system.
Unlike the vaginal microbiome, where certain Lactobacillus-dominant communities are associated with health, a healthy gut generally thrives on microbial diversity.
Different environments. Different needs. One interconnected body.
Your gut. Your hormones.
Meet the estrobolome.
Some gut bacteria produce enzymes involved in the metabolism of oestrogen.
Together, the microbial genes responsible for these activities are known as the estrobolome.
Researchers are exploring how these bacteria may influence the way oestrogen is processed and recirculated throughout the body.
It's an emerging area of science with potential relevance to hormonal health, metabolism and the changing stages of female life.
The gut–vagina axis.
Two distinct microbiomes. More connected than you might think.
- Bacteria
- Hormones
- Immune signalling
- Microbial metabolites
The gut and vagina have their own microbial communities, but they don't exist in isolation.
Researchers are investigating how bacteria, hormones, immune signalling and microbial metabolites may connect these two environments.
Some bacterial strains have been identified in both the gut and vaginal tract, suggesting that the gut may act as a reservoir for certain vaginal microorganisms.
Meanwhile, oestrogen helps shape the vaginal environment, making the gut's involvement in hormone metabolism particularly interesting.
It's a developing area of research that's changing how scientists think about female microbial health.
A microbiome that moves with you.
Diet. Medication. Stress. Age. Hormonal change.
Your gut microbiome responds to the life you live.
And as female biology changes through menstruation, pregnancy, perimenopause and menopause, researchers are increasingly interested in how our microbial communities change alongside it.
Understanding the gut microbiome isn't simply about digestion.
It's about understanding another part of the biology that makes us who we are.
The research.
Explore the science behind the connections.
Discover peer-reviewed research exploring the gut microbiome, oestrogen metabolism and the emerging gut–vagina axis.
02 · Narrative review · Reproductive Medicine
Estrobolome in the gut–vagina axis (2026)
Explores the relationship between gut microbial oestrogen metabolism, reproductive tissues and vaginal microbial communities.
Read the publication ↗03 · Review · Frontiers in Immunology
Female reproductive tract–organ axes (2023)
Examines emerging connections between the female reproductive tract, the gut and other body systems.
Read the publication ↗Studies in this area are being added.
All information provided is for educational purposes only and is not intended to replace professional medical advice.
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