The idea behind probiotics
The vagina is home to a community of bacteria (the vaginal microbiome) that helps keep it healthy. Lactobacilli are the dominant bacteria and they help maintain an acidic environment that prevents harmful bacteria and yeast from overgrowing.
The idea behind probiotic supplements is that by introducing beneficial bacteria, you can restore or maintain a healthy vaginal microbiome — particularly after antibiotics or during a bout of BV or thrush.
What the evidence shows
Research on probiotics for vaginal health is mixed but promising. Some studies suggest that certain strains (particularly Lactobacillus rhamnosus and Lactobacillus reuteri) may help prevent recurrent BV and support the restoration of healthy vaginal flora after antibiotics.
However, the evidence isn't strong enough to recommend probiotics as a primary treatment. They're better viewed as a potential support measure alongside medical treatment, rather than a replacement for it.
Should you try them?
If you experience recurrent BV or thrush, probiotics may be worth trying as a complementary approach. Look for products containing researched strains, and discuss with your GP or pharmacist.
More importantly, focus on the basics: avoid douching, wear breathable underwear, use gentle unscented products, and see your GP for proper diagnosis and treatment rather than self-treating recurring symptoms.
Related condition
Vaginal & vulval health →References & sources
- 1.Vaginal thrush — healthdirect
- 2.Vaginal thrush — Better Health Channel
- 3.Bacterial vaginosis — Better Health Channel
- 4.Vulva and vagina — Jean Hailes for Women's Health
This content is general information and not a substitute for individual medical advice. Please consult a GP for your personal situation.
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