When do you throw out a pair of underwear?  If you said "Only when it has too many holes for me to count" listen up.

You should throw away your underwear every YEAR . . . or it becomes a health risk.

Even though you're washing them after you wear them. Old underwear can still develop a buildup of bacteria like E. coli.  That can lead to you getting infections down under.  No one wants that,

Not everyone is even washing them regularly.  The study found 18% of men and 10.5% of women wear underwear multiple times without washing them.

Researchers say you probably shouldn't wear underwear when you sleep, sleeping nude is better. **Note to self…. date a researcher!

How often do you replace your undies? Do you go commando? Tell us in the comment section below.