From the Research
Cotton is the best underwear material for reducing the risk of vaginal candidiasis (yeast infection). Choose breathable, 100% cotton underwear that fits comfortably without being too tight. Cotton naturally wicks moisture away from the body and allows air circulation, creating a less hospitable environment for Candida fungi to thrive. Moisture and heat create ideal conditions for yeast overgrowth, so keeping the genital area dry is essential for prevention. Avoid synthetic materials like nylon, polyester, and spandex, which trap heat and moisture against the skin. This recommendation is supported by a study published in 2019 1, which found that wearing non-cotton crotch underwear was associated with yeast vaginitis.
Some key points to consider when choosing underwear to reduce the risk of yeast infections include:
- Avoiding synthetic materials that trap heat and moisture
- Choosing breathable, 100% cotton underwear
- Wearing loose-fitting clothing to improve air circulation
- Changing underwear daily and after exercise
- Avoiding scented products in the genital area
- Removing wet swimwear promptly
It's also important to note that while underwear choice alone won't prevent all yeast infections, proper underwear selection combined with good hygiene practices can significantly reduce your risk. A study published in 2007 2 found that panty liners do not promote vulvovaginal candidiasis or urinary tract infections, but it's still important to prioritize breathable, cotton underwear to reduce the risk of yeast infections. Additionally, a study published in 1996 3 found that polyester underpants can have an injurious effect on human sexual activity, further supporting the recommendation to choose cotton underwear.