Are skinny jeans dangerous? Not quite.

The usual safety hazard of the fashion world is high heels, but an Australian case study released this week found a new culprit amid the Louboutins.

In an article published Monday night in the Journal of Neurology Neurosurgery & Psychiatry, doctors describethe case of an Australian woman who had to be hospitalized after experiencing sudden, severe weakness in both her ankles.

The 35-year-old woman had passed out and suffered nerve damage —all because of her skinny jeans, according to the researchers.

But skinny jeans addicts need not drop trou. Dr. Thomas Kimber, the lead author of the study, tells Metro that he believes it was the combination of squatting and tight jeans that caused the problem.

“Squatting would have compressed the peroneal nerves in the lower leg and reduced the blood supply to the calf muscles,” he explains. “The tight jeans meant that as the calf muscles started to swell in response to the reduced blood supply, they compressed the adjacent tibial nerves and further cut off the blood supply to the muscles.”

Here’s what happened: The previous day, she had been helping a family member with moving. Dressed in skinny jeans, she had spent several hours squatting while emptying cupboards. As the day went on, she remembered her jeans feeling increasingly tight and uncomfortable.

Later that evening, her feet began to grow numb, making it difficult to walk, and she eventually tripped and fell. Unable to get back up, she spent several hours lying on the ground before she was found.

If she’s been wearing looser clothes, “the calf muscles could have swollen outwards rather than inwards, thus avoiding pressure on the nerves and blood vessels,” Kimber says.