Here's Another Reason You Shouldn't Douche - Women's Health

Here’s Another Reason You Shouldn’t Douche

Plus, what your vaginal biome can tell you about your health and pregnancy.

Researchers in the UK have discovered a rapid test  that checks the vaginal microbiome and can detect risks of preterm birth. And with up to 50% of preterm births associated with microbial causes, the

So, a rapid test that can return results within minutes could make a world of difference for patients and families.

This groundbreaking research sheds further light on how the vaginal microbiome works and what it can tell someone about the health of their body and their baby.

Not just for guts

The microbiome is a buzz word that has popped up a lot lately – and yes, most people associate it with gut health.

In fact, microbiome is the term used when describing all of the DNA content of our microbiota – the trillions of “bugs” that live as a community in us and on us (including our gut, mouth, urine, skin and yes, vagina). These microorganisms include bacteria, viruses and fungi.

Without our microbiome, our bodies would not function correctly. Our microbiome has been shown to impact our immune development, disease defences and our behaviour and mental health. Research shows intergenerational and matrilineal inheritance patterns of birth microbiota. In other words, we inherit the microbiome of our mothers and grandmothers at birth.

While large studies investigating our gut and mouth microbiome and links with health and disease are well established, the science behind the vaginal microbiome is still in its infancy. One of the first papers showing distinct microbial changes throughout the trimesters of pregnancy was only published in 2012. But there is a growing emphasis on how a person’s vaginal microbiome can impact reproductive and public health.


What makes the vaginal microbiome different?

The vaginal microbiome is complex and fascinating. Its dynamics differ significantly between non-pregnant and pregnant states, and over the course of our lifespan – from birth, through to puberty, and beyond menopause.

Ethnicity, socioeconomic status, menstrual cycle, and sexual partners all impact on the microbiota present in your vagina.

Dominated by Lactobacillus species (usually L. crispatus, L. iners, L. jensenii or L. gasseri), the vaginal microbiome has long regarded “healthy” or “normal” in people of European ancestry. But now we understand healthy non-pregnant African-American and Hispanic people have a non-Lactobacillus-dominated microbiome.

States of play

The vaginal microbiome needs to be looked at in two contexts – non-pregnant, and pregnant. When a person is not pregnant, their “normal” vaginal microbiome should be highly diverse and dynamic, fluctuating with their normal hormonal cycle and lifestyle. Once they fall pregnant, these fluctuations should stabilise and overall diversity of the vaginal microbiome should decrease.

Sometimes, the microbiome loses stability and becomes out of balance – this is called dysbiosis. When the vaginal microbiome is out of balance, people may notice inflammation, itch, malodour, discharge or redness.

Some may be familiar with the uncomfortable feeling of a candida (yeast) infection or have encountered the fishy smell commonly caused by bacterial vaginosis. But it’s not just these conditions that come from an imbalanced microbiome.

There is evidence to suggest this can also affect the ability to fall pregnant, pregnancy well-being (such as the potential to develop gestational diabetes or pre-eclampsia) and result in preterm labour and birth.


How can I keep my vaginal microbiome healthy?

There are strategies to improve the health of one’s microbiome – but a magic pill isn’t the answer. Your microbiome is unique and there is no one-size-fits-all approach.

The best way to ensure a healthy microbiome is by eating well, drinking lots of water, exercising regularly and refraining from smoking and alcohol. Minimising stress and maintaining good general hygiene are also essential. But do not douche – this can negatively effect the makeup of your vaginal microbiome! The vagina is considered a “self-cleaning oven”.

There isn’t a lot of high quality evidence on the benefits of probiotics to improve you vaginal microbiome. One papersuggests changes are only present during dosing schedules, and disappear when the person ceases the medication. This indicates the probiotic does not colonise the vaginal microbiome and stick around long term.

Rapid testing on the way

The new research could lead to a convenient, bedside test for preterm birth risk. This would enable clinicians to make faster and more targeted decisions on treatment options, resulting in better outcomes for both mum and bub.

Researchers point out rapid testing might also be useful in other clinical scenarios, but this is yet to be tested. Ultimately, this is new technology, and the focus of a clinical trial – there is still a way to go before we see rapid testing in Australian hospitals or other healthcare settings.

UNSW’s Microbiome Research Centre is recruiting people actively planning a pregnancy, to determine if their preconception microbiome might influence pregnancy and birth outcomes. If we can determine whether your microbiome is dysbiotic before you even fall pregnant, we could transform maternal and child health worldwide.


This article was originally published on The Conversation.

Naomi Strout

By Naomi Strout

Naomi is the Executive Officer & Project Manager for The MothersBabies Study at UNSW's Microbiome Research Centre. This study is researching ways the microbiome can shape better health outcomes for women and children. Naomi is a dual trained Registered Nurse (MAdvN) and Registered Midwife (Distinction), with extensive experience working with children from birth to 18 years of age. Prior to working in research Naomi has nursed in oncology/haematology, neonatal intensive care (NICU) and adolescent health. She has a strong background in the coordination in paediatric clinical research, assisting investigators and commercial organisations to develop innovative treatment methods and improve healthcare for children. Her passion for the microbiome and how it can impact on the long-term health outcomes stems from her midwifery training – healthy mothers (and fathers!) are the key step in making healthy babies and children for the future.

Recommended to you

More From