A shocking 2019 survey found that 45% of Americans wear the same underwear for two days straight—and gynecologists say this habit could be wreaking havoc on vaginal health.
Your underwear choice impacts yeast infections, irritation, and even UTIs. But with so many options (thongs, cotton, silk, commando?), how do you pick the right pair?
We asked Dr. Rebecca Brightman, a leading women’s health expert, to break down the 2024 rules for underwear hygiene. Spoiler: You might need to ditch your favorite thong.
1. The #1 Fabric Gynecologists Demand (Hint: It’s Not Silk)
Why Cotton is Non-Negotiable in 2024
“Synthetic fabrics trap moisture—creating a breeding ground for bacteria,” warns Dr. Brightman. Cotton’s breathability reduces infection risks by 70% (Journal of Women’s Health, 2023).
The Cotton Checklist:
✅ 100% cotton gusset (the part touching your vulva)
✅ Avoid “cotton-blend” scams (many brands only use cotton in the waistband)
✅ Skip nylon/spandex (traps sweat, causes chafing)
Pro Tip: If cotton feels too plain, try organic hemp or linen underwear—they’re naturally antimicrobial.
Image: Close-up of a cotton gusset vs. nylon fabric labeled “Bacteria Risk.”
2. The Commando Controversy—Solved!
Should You Sleep Without Underwear?
“I recommend going commando at night to let the body breathe,” says Dr. Brightman. 92% of her patients who switched reported fewer yeast infections.
When to Go Panty-Free:
🌙 Bedtime (lets skin recover from daily friction)
🏖 Loose dresses/skirts (reduces moisture buildup)
But if commando feels weird:
→ Try men’s cotton boxers (breathable, no tight seams)
→ Opt for silk or linen nightgowns (no synthetic fabrics)
3. Thong Truths Exposed
Are Thongs Really That Bad?
Myth: Thongs cause UTIs and yeast infections.
Truth: Studies show hygiene and sex habits matter more—but thongs can worsen irritation if:
- You shave/wax (no hair = less friction protection)
- You wear them post-workout (sweat + bacteria = disaster)
How to Wear Thongs Safely:
- Cotton gusset only (no lace or synthetics)
- Change immediately after sweating
- Avoid daily wear (rotate with full-coverage styles)
Image: Infographic: “Thong Do’s and Don’ts for Vaginal Health.”
4. The 10-Second Laundry Trick That Saves Vaginas
How to Wash Underwear (The Right Way)
“Most women don’t realize their detergent is causing irritation,” says Dr. Brightman.
Gynecologist-Approved Laundry Rules:
🔥 Wash in hot water (kills bacteria)
🚫 No scented detergent (linked to pH imbalances)
🚫 Skip dryer sheets (hidden fragrances = irritation)
Shocker: You don’t need to replace underwear yearly—just check for stretched elastic or thinning fabric!