Medical experts, including UK television personality Dr. Hilary Jones, have reported an increase in injuries being caused by tight jeans, cites The Telegraph on Wednesday. "The trendy denims are causing twisted testicles, bladder weakness, and even urinary tract infections."

Twisted testicles is a serious condition that occurs "when tight trousers prevent the spermatic cord from moving freely, meaning it twists and leads to testicular torsion which cuts off the blood supply requiring immediate surgery to prevent a gangrenous testicle," noted the report.

Other dreaded side effects from overly tight jeans: low sperm count and fungal infections.

According to the UK press, Jones is working with TENA, a maker of hygienic products for people with incontinence, on a project to highlight the dangers.

''I have seen several cases of men who have twisted their testicles due to wearing jeans that are far too tight," she reportedly said. ''My advice would be to make sure you leave plenty of room around the groin area and that your [under]pants and trousers feel comfortable so you're not being restricted in any way."

''Please don't put style before health,'' Jones added.

For women, wearing skinny jeans can increase one's chances of developing a vaginal yeast infection. Plus for both sexes, tight jeans have found to raise the risk of nerve compression, which can lead to tingling or numb thighs, according to health and fitness website RealBuzz.