If you've ever dealt with thrush, bacterial vaginosis (BV) or ongoing irritation, you've probably heard the same piece of advice more than once: wear cotton underwear. But why does the fabric matter, and can it really make a difference?
Why Fabric Choice Matters
The vulval area is naturally warm, and it gets warmer still during exercise, hot weather or long days in tight clothing. When heat and moisture get trapped, it creates conditions where yeast and bacteria can thrive more easily – which is why many gynaecologists recommend breathable cotton over synthetic fabrics, particularly for anyone prone to irritation or recurrent infections.
Cotton Helps Keep the Area More Breathable
Cotton is a natural fibre known for its breathability. Unlike most synthetic fabrics, it allows air to circulate more freely, helping reduce heat and moisture build-up. No underwear can prevent infections outright, but a cooler, drier environment is one reason cotton is so often recommended by healthcare professionals.
Cotton and Thrush
Thrush is a common yeast infection caused by an overgrowth of Candida – a yeast that naturally lives in the body, but multiplies more easily in warm, moist conditions. That's why many healthcare professionals suggest loose-fitting clothing and breathable cotton underwear for anyone prone to recurrent thrush. Cotton won't treat an infection, but it can help reduce some of the conditions yeast prefers.
Cotton and Bacterial Vaginosis (BV)
BV happens when the natural balance of bacteria in the vagina shifts – underwear alone isn't considered a cause, and there are many contributing factors. Still, because cotton is breathable and comfortable, many gynaecologists recommend it as part of good vulval care, alongside avoiding heavily fragranced products and keeping up healthy hygiene habits.
What About UTIs?
Urinary tract infections happen when bacteria enter the urinary tract – they're not caused by the underwear you wear. That said, staying dry and changing out of damp workout clothes promptly are sensible habits, and breathable cotton underwear can help you feel more comfortable throughout the day.
Other Tips Gynaecologists Commonly Recommend
For anyone prone to irritation or recurrent infections, healthcare professionals often also suggest:
- Choosing breathable cotton underwear
- Changing out of sweaty gym clothes as soon as possible
- Avoiding heavily fragranced soaps and intimate products
- Sleeping without tight-fitting clothing when practical
- Wearing clothing that allows air to circulate
If symptoms persist or keep recurring, speak to your GP or another qualified healthcare professional for personalised advice.
Choosing Comfort Every Day
Underwear won't solve every health concern, but choosing breathable, comfortable cotton is one simple step that supports everyday comfort – and lines up with advice commonly given by gynaecologists. At Cotton Coup, we believe the clothing closest to your skin should help you feel fresh, comfortable and confident, whether you're at the gym, travelling, working or just going about your day. Sometimes the smallest everyday choices make the biggest difference.
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