UNITED KINGDOM - OCTOBER 23:  Photo of PANIC AT THE DISCO and PANIC! AT THE DISCO; Col. Posed  (Photo by Nigel Crane/Redferns
Nigel Crane

That skinny jeans fad among rock fans and bands—like the Kings of Leon, any Warped Tour act or any group from England—appears to be putting them in danger: It could be causing permanent damage to their testicles and more, says a British doctor. 

According to Dr Hilary Jones, who is apparently a regular guest on some show called Daybreak [via NME], wearing skinny jeans can lead to twisted testicles, bladder weakness, urinary tract infections, low sperm counts and fungal irritations. Having any of those would seriously suck. 

"I have seen several cases of men who have twisted their testicles due to wearing jeans that are far too tight," said Dr Jones. "Wearing tight-fitting clothing over a prolonged period of time can lead to urinary tract infections leading to overactivity of the bladder."

Apparently a study of 2000 British men revealed that one in 10 experienced an unpleasant side effect from wearing skinny jeans. Half reported groin discomfort; a quarter bladder troubles; one in five a twisted testicle. Yikes.

However, take that with a grain of salt. The Kings of Leon, who might actually have the skinniest jeans of all, appear to be a-okay—frontman Caleb Followill and his wife, Victoria Secret model Lily Aldridge, just welcomed a baby girl into the world, and Kings drummer Nathan Followill just announced that his wife, singer-songwriter Jessie Baylin, is preggers. So, there's that.