Guys Who Wear Boxers Have Higher Sperm Counts (Study)

young male athlete - boxers

New research may help to answer an age-old question


A new study suggests men who wear loose fitting underwear, like boxers, may experience higher sperm concentrations.


There are many topics guys don’t talk about because they are considered taboo. One of them is personal underwear choices. Let’s face it – it’s not like we go around asking one another what brands we like or fabric preferences.

But maybe we should?

If we were having such conversations, we’d probably learn about some exciting health news that helps to answer the age-old question: Boxers or briefs.  

According to a paper published in Human Reproduction, men who wear looser fitting skivvies, like boxers, have higher sperm concentrations than guys who do not.

For this line of research, investigators at Harvard T.H. Chan School of Public Health and Massachusetts General Hospital surveyed 656 guys who were seeking help from an infertility clinic between 2000-2017.

Using self-reports, the men revealed what types of underwear they typically wear. Additionally, they also provided semen samples for testing.

Here’s what investigators learned: Men who wore boxers had a whopping 25% higher sperm concentration than the guys who did not. That’s kind of a big deal, don’t you think? Particularly if you are hoping to be a dad.

Now obviously, there are all sorts of limitations to this study. A big one is that self-reports are often unreliable. Other caveats inconsistent semen sampling times, fabric types and even scrotal heat.

Still, the results are jaw-dropping.

Perhaps guys will be more comfortable talking about underwear choices in the future? It’s not like we’re not interested in such things.

Want proof?

According to Market Watch, the men’s underwear space in 2017  saw over 9 billion dollars in revenue worldwide. Moreover, that number is expected to swell past 16 billion by 2025.

So, there you have it. Wearing boxers may offer a serious boost in sperm concentrations. We’ll have to keep our eye out for future studies that help support the findings in Human Reproduction.

Until then, we probably would do well to get over ourselves and talk about our skivvies. Otherwise, a lot of us are going to be left in the dark.

So, which do you like to wear – boxers or briefs?

About John D. Moore 391 Articles
Dr. John Moore is a licensed counselor and Editor-in-Chief of Guy Counseling. A journalist and blogger, he writes about a variety of topics related to wellness. His interests include technology, outdoor activities, science, and men's health. Check out his show --> The Men's Self Help Podcast