Let’s be honest—underwear hygiene isn’t exactly a popular topic, but it’s an important one. Sweat, bacteria, and dead skin can accumulate quickly, and how often you should change your underwear depends on factors like activity level and even the type of fabric. What’s more, the guidelines can differ between men and women. Skipping changes for too long can lead to irritation, unpleasant odors, and even infections. And no, flipping them inside out doesn’t count as a fresh start!
Content is provided for informational purposes only and is not intended as a substitute for medical advice. Always consult your doctor for guidance regarding your health and medical conditions.
While many people follow the once-a-day rule for changing underwear, experts suggest it’s not always so straightforward. The frequency can depend on factors like the type of underwear you wear and your daily activities. Breathable fabrics, such as cotton, tend to resist bacteria buildup and may last longer, while synthetic materials often require more frequent changes.
Although daily changes are commonly recommended, medics point out that it’s not a one-size-fits-all rule. Dermatologists note that in low-activity situations with minimal sweating—specifically for men—changing every other day might be acceptable. However, for most people, especially those with active lifestyles or who sweat more, sticking to daily changes is still the best practice to maintain hygiene and prevent irritation or infections.
Certain men’s underwear styles, like boxers, are designed with a looser fit, which can make them feel fresher for longer compared to tighter styles. However, don’t let that fool you into thinking they don’t need regular changing. Skincare expert Sarah Roberts cautions that while boxers may not cling to the skin as closely as women’s underwear, they still accumulate sweat, bacteria, and dead skin cells over time. Wearing them too many times without washing can lead to irritation, odors, and even skin issues. So, even with boxers, it’s best to stick to a regular changing routine to maintain proper hygiene and comfort.
For women, the risks of not changing or washing underwear regularly are even more significant. Wearing the same underwear for too long can create an environment where bacteria and yeast thrive, potentially leading to uncomfortable and painful conditions like yeast infections and bacterial vaginosis. The close contact between underwear and sensitive areas makes proper hygiene especially important. To avoid these issues, it’s crucial to change underwear daily—or more frequently if needed—and opt for breathable fabrics like cotton to help maintain a healthy balance. Prioritizing cleanliness and comfort can go a long way in preventing these common but avoidable problems.
While you might occasionally get away with wearing your underwear every other day, dermatologists strongly recommend changing them at least once daily to prevent infections. In hot and humid climates, where sweat and moisture accumulate more quickly, you may even need to change more than once a day to stay fresh and hygienic.
Conditions like yeast infections and bacterial vaginosis are often linked to bacteria buildup caused by sweat and moisture. Yeast infections can cause irritation, unusual discharge, and intense itching, while bacterial overgrowth may lead to unpleasant odors and a burning sensation during urination. For those with heavy menstrual cycles, changing underwear more than once a day is often necessary for both hygiene and comfort. Staying proactive about underwear hygiene can help you avoid these uncomfortable issues and maintain overall health.
Thongs often get a bad reputation, but studies haven’t found clear evidence linking them to issues like yeast infections, bacterial vaginosis, or UTIs. On the other hand, briefs, while offering more coverage, can trap moisture and bacteria if worn for too long, increasing the risk of irritation or infections.
The bottom line? No matter your preferred style—whether it’s briefs, boxers, or thongs—regular changes are essential to staying comfortable and avoiding infections. If you notice irritation, itching, or unusual discharge, it’s a sign to switch things up and consult your healthcare provider.
While fresh pairs every day are your best bet, here are a few extra tips to help you stay comfortable and hygienic:
- Opt for breathable fabrics like cotton.
- Change immediately after workouts or heavy sweating.
- Avoid overly tight styles that can trap moisture.
- Wash underwear in hot water to kill bacteria.
Prioritizing good underwear hygiene can make a big difference in your overall comfort and health!
