It’s summer in Minnesota, which means lake days, poolside lounging, and backyard sprinkler runs. But if you’ve ever heard that staying in a wet swimsuit too long can cause a yeast infection, you might be wondering: is that actually true—or just another old wives’ tale?
Let’s clear things up.
Can a wet swimsuit really cause a yeast infection?
Not exactly. A wet swimsuit by itself won’t directly cause a yeast infection. But it can contribute to conditions that make one more likely.
Yeast infections—also called vaginal candidiasis—happen when there’s an overgrowth of Candida, a type of fungus that naturally lives in the vagina. Normally, “good” bacteria help keep this yeast in check. But when the balance is disrupted, Candida can multiply, causing itching, irritation, and other uncomfortable symptoms.
A damp, tight swimsuit creates a warm, moist, non-breathable environment that yeast loves. Sitting around in that suit after a swim gives it the opportunity to thrive.
Why staying damp matters
Prolonged moisture near the vaginal area can upset your body’s natural pH and bacterial balance—creating a perfect storm for yeast to grow. That’s why quick changes after swimming or sweating can go a long way in preventing issues.
Other risk factors include:
- Antibiotic use – These can kill beneficial bacteria that keep yeast levels in check.
- Hormonal changes – Including pregnancy, menstruation, and hormonal birth control.
- Uncontrolled diabetes – High blood sugar levels can promote yeast growth.
- Weakened immune system – Makes it harder to fight off overgrowth.
” While a wet swimsuit doesn’t guarantee you’ll get a yeast infection, it can certainly raise your chances—especially in hot, humid weather. The best rule? Change into dry clothes right after your final dip in the lake. “
Heidi Deutschlander, APRN, CNP
Welia Health Women’s Health provider
Yeast infections are common—really common
According to the CDC, around 3 out of 4 women will experience a yeast infection in their lifetime, and nearly half will have two or more. So, while a wet swimsuit isn’t the sole cause, it can definitely play a supporting role.
Know the symptoms
If you’ve ever had a yeast infection, you probably remember the signs:
- Persistent itching or irritation in the vagina or vulva
- A burning sensation, especially during urination or sex
- Redness and swelling
- Thick, white, odorless discharge (often compared to cottage cheese)
If these sound familiar, don’t panic—yeast infections are very treatable. That said, it’s best not to self-diagnose. Other conditions like bacterial vaginosis or urinary tract infections (UTIs) can have similar symptoms. A quick visit to your Welia Health provider can help you get the right diagnosis and treatment.
Summer tips for staying balanced “down there”
Don’t let yeast infections ruin your summer vibe. Try these easy strategies to keep your vaginal health in check:
- Change out of wet suits quickly – Pack a dry cover-up or spare clothes if you plan to stick around after swimming.
- Choose breathable fabrics – Cotton underwear helps keep air flowing and moisture away.
- Avoid tight clothing post-swim – Loose shorts or dresses give your body room to breathe.
- Skip the scented stuff – Fragranced soaps, sprays, and douches can throw off your pH.
- Consider probiotics – Yogurt or supplements with live cultures may help support healthy vaginal flora.
When to call your provider
If symptoms last more than a few days, keep coming back, or if you’re just not sure what’s going on—reach out. Call Welia Health at 320.679.1313 or request an appointment online.
Yeast infections are common and treatable, and there’s no need to endure unwelcome symptoms. At Welia Health, our Women’s Health team is here to help you feel comfortable, confident, and well—every season of the year.