Average UK man's underpants are four years old and some wear them for an entire week

The  average man's underpants are four YEARS old, hahahahaha

A study of 2,000 men found more than half of are walking around in underwear so old they have holes in.

The research into the state of the nation's underwear habits examined age, quality and freshness - and uncovered some dirty secrets down below.

A typical pair of briefs gets washed after each wear (78%) but a shocking one in 10 men admitted to wearing them SEVEN times before cleaning them.

The typical pair or pants is four years old, but one in 10 stingy men have held onto their underwear for more than 10 years.

Men in Northern Ireland change their pants the least

As a result, over half the UK male population are wearing pants so old they've got holes in or have lost their elasticity, according to the poll by menswear retailer Jacamo.

But men should take note - smelly underpants and pants with holes in both fall in the Top 5 biggest turn-offs for girls, alongside bad breath, bad teeth and a lack of manners.

The average UK man owns 13 pairs in total, buys new pants once every six months and spends an average of £20.75 a year on them.

He's most likely to opt for a classic black pair of cotton boxer shorts and will stick to the wear necessities in bed by going commando.

While most men simply choose their underwear based on comfort, 6% are influenced by what their girlfriend or partner prefers, or what's easiest to access in the drawer each morning.

The occasion also affects what style of underpants men wear. One in three lads will change their pants if they think they're going to get lucky on a date, almost half (41%) don a special pair for a night out and one in 10 will adapt their choice if they have an important business meeting at work.

One in 10 also said that getting undressed in a sports changing room would affect what pants they wear.

Regionally, Scots are most likely to wear a thong, men in East Anglia are most likely to wear Y-fronts and blokes in the East Midlands are most likely to wear trunks.

Men in Northern Ireland are the dirtiest, with one in 10 wearing their pants four times before washing them, while Geordies buy new pants most frequently with 6% splashing out on new pairs once a month.

Newscastle lads are also most likely to own a pair of novelty pants, with one in three owning cartoon adorned kecks.

The research reveals that there's a clear evolution of pant choices during life - starting out in younger years with Y-fronts or briefs, evolving into boxer shorts from the ages of 20-50 and then returning back to Y-fronts after 60.

Jenni Bamford from Jacamo says: "Our study has uncovered a distinct sniff of laziness when it comes to men in the UK and their underwear habits.

"Uncovering the dirty secrets of the nation's drawers may have revealed some less-than-ideal underwear habits.

"But in revealing the fact that smelly pants is one of women's top turn-offs, we're hoping it'll encourage men to think again when they pick up the same pair of boxers for another use next time."