People are just realizing how long they should keep their underwear

When was the last time you thought about the lifespan of your underwear? If you’re like most people, probably not recently! A recent viral TikTok video has people across social media rethinking how often they should replace their underwear, sparking surprise, debate, and a deeper dive into hygiene. Let’s explore what experts have to say on how long you should keep your underwear and why regular replacement could benefit your health.

The Viral TikTok That Started the Conversation

The viral video, posted by TikTok user @tiktokforgood, reveals a surprising “expiration date” for underwear, suggesting they should ideally be replaced every six to nine months. This revelation shocked viewers and ignited a lively debate in the comments, with some people in disbelief and others sharing their own routines for changing out their undies.

One user commented, “Six months? I usually keep mine for years!” while others pointed out that they change underwear twice a day. It turns out that the question of when to replace underwear varies widely, with plenty of opinions but few hard rules—until now.

Why Should You Replace Underwear Regularly?

It may seem like overkill to replace underwear every few months, but there’s a hygienic reasoning behind it. Even with regular washing, bacteria can linger in the fabric, especially in the elastic waistbands and seams. According to hygiene experts at the Good Housekeeping Institute, freshly washed underwear can still harbor up to 10,000 bacteria.

Over time, this bacterial buildup could lead to minor skin irritation or infections, especially for people with sensitive skin or those prone to bacterial infections. Dead skin cells, sweat, and other microscopic debris accumulate, and while not necessarily harmful to everyone, they could pose a risk under the right circumstances.

The Health Risks of Keeping Underwear Too Long

Intimate health experts, such as Dr. Shirin Lakhani, note that prolonged use of old underwear can increase exposure to bacteria, potentially leading to urinary tract infections (UTIs) or yeast infections, especially when other factors—like sweat or heat—are at play. Regularly changing underwear reduces these risks and can also prevent irritation from wear and tear on the fabric.

Dr. Christine Greves from the Center of Obstetrics and Gynecology in Orlando offers additional advice: as long as underwear is clean, made from breathable cotton, and washed with a non-irritating detergent, it may be safe to wear longer than the six-month recommendation. However, signs of wear, fraying elastic, or odors that linger after washing could indicate it’s time for a refresh.

How Often Should You Actually Replace Your Underwear?

While the TikTok suggestion of six to nine months might seem frequent, here’s a general guide based on expert advice:

• 6–12 Months: For people who sweat heavily, exercise frequently, or have sensitive skin, replacing underwear every six to nine months can help reduce exposure to bacteria and keep everything fresh.
• Annually: For most people, replacing underwear once a year is sufficient. Regular washing (especially in warm water) and good storage can keep underwear in good condition for about a year.
• When Worn or Stretched: If your underwear is frayed, the elastic is stretched out, or there are stains or lingering odors, it’s time to replace it, regardless of how long you’ve had it.

Tips for Extending the Lifespan of Your Underwear

If replacing underwear frequently sounds wasteful or expensive, here are some tips to make your undies last longer while maintaining good hygiene:

• Wash in Warm Water: While not all fabrics tolerate high temperatures, washing cotton underwear in warm water can help kill more bacteria and extend the freshness. Be sure to follow care instructions for other materials.
• Use Gentle, Non-Irritating Detergents: Using a gentle detergent without strong fragrances or harsh chemicals can protect both your skin and your underwear’s fabric.
• Dry Completely: Allow underwear to dry fully before storing, as damp fabrics can trap bacteria and odors. Sun drying, when possible, can also help eliminate bacteria.

Eco-Friendly Ways to Dispose of Old Underwear

For those who feel guilty about the environmental impact of replacing underwear, there are eco-conscious ways to discard old pairs without adding to landfill waste.

• Donate or Upcycle: If the underwear is still in relatively good condition, consider donating it to organizations that accept lightly used clothing. Alternatively, you can upcycle old underwear into cleaning rags or craft projects.
• Composting: If your underwear is made of 100% natural fibers like cotton, it can be composted. Be sure to remove any synthetic parts like elastic or trim before composting.
• Recycle: Some programs accept textiles for recycling. Check with local recycling centers or clothing brands that offer textile recycling services.

What Other TikTok Users Are Saying

The discussion on TikTok wasn’t just about the frequency of underwear replacement; it also opened up debates on best washing practices. Some commenters argued that hot water is essential for killing bacteria, while others insisted that modern detergents work well even in cold water. Others shared personal routines, from changing underwear twice daily to using hot water exclusively for washing intimates.

One TikTok user humorously noted, “Take old undies on vacation and throw them out after wearing.” Others suggested simply turning underwear inside out to double its “lifespan,” though this advice was (hopefully) in jest.

Balancing Sustainability and Hygiene

For those wanting to balance sustainability with good hygiene, consider building a smaller but high-quality underwear collection made from durable, natural fabrics like organic cotton. While frequent replacement is ideal from a hygiene perspective, opting for eco-friendly, biodegradable materials and sustainable disposal methods can reduce environmental impact.

Conclusion: When in Doubt, Freshen Up Your Undies!

Though the idea of replacing underwear every few months might surprise some, keeping underwear fresh and clean can contribute to overall hygiene and reduce the risk of infections. From bacteria buildup to fabric wear and tear, there are several reasons to pay attention to your underwear’s lifespan. While everyone’s routine may vary, regular replacement and proper washing can help keep you feeling fresh and comfortable.

So, whether you’re team “replace twice a year” or “replace every two years,” paying a bit of attention to this often-overlooked part of your wardrobe can go a long way. After all, good hygiene starts with the basics, and what’s more basic than a fresh, clean pair of underwear?