Expert Advice

Boxers or briefs? Scientists reveal the best underwear for male fertility

The age old question finally has a scientific answer.

By: Alex Lilly

If you're trying for a baby, your partner's fashion choices could make a difference. Specifically, his choice in undies.

Recent research from the Harvard T.H. Chan School of Public Health in Boston has shown that men who wear boxers have higher sperm concentrations than men who wear tighter-fitting undies.

The study analysed 656 men from couples seeking infertility treatment aged between 18 and 56. They answered a questionnaire about the types of underwear they'd worn in the last three months and also provided researchers with a semen sample and a blood sample on the same day.

Not only did the men who wore boxers have a 25 per cent higher sperm concentration, but they also had a higher total sperm count, more swimming sperm in a single ejaculate and they were the correct shape. Time to throw out the tighty whities, lads.

Boxers versus briefs, which is better for male sperm?

How to boost male fertility

So now you've invested in some boxer shorts, what are some other ways your man can increase his fertility? Apart from wearing loose-fitting underwear, Professor Kerryn Phelps has some tips to help increase sperm count.

Hot baths aren't great for healthy sperm. Oh well, more for us girls!