Originally used to smooth out frown-lines and crow’s feet, it was never going to be long before Botox was taken to other parts of the body.

And whilst usually associated with the frozen faces of women, it’s now men getting in on the Botox action - but not just for their faces.

Men are now having Botox - the neurotoxin drug that temporarily paralyses muscles - injected into their scrota.

Although it sounds bizarre, doctors predict the treatment, so-called Scrotox, is only going to become more popular in 2017.

New York-based plastic surgeon Dr. John Mesa has performed Scrotox on 15 men in the past year alone, although he calls the procedure “ball ironing”, according to Men’s Health.

The effect of Scrotox is much the same as regular Botox (or ironing, for that matter): the removal of wrinkles, and the effect lasts for about four months.

Over time, testicles develop wrinkles due to changing temperatures - when it’s warmer, the scrotum relaxes, and in colder conditions they contract.

But as well as smoothing the skin, Dr. Mesa explained that Scrotox allows the testicles to hang down further and appear bigger, which is another attraction for many men.

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One man explained that he decided to get Scrotox after reading reports that it could make sex more pleasurable for both him and his girlfriend: “The results don’t happen right away, but within that week or so I did feel like my scrotum was more relaxed than before,” he told Cosmopolitan. “They are not loose all the time, which is one of the things I was not expecting.”

The Scrotoxed man also added that “The sex was great!” as he’d hoped.

Given that the body part in question is obviously so much more sensitive than the skin on one’s face, you’d be forgiven for thinking Scrotox must be incredibly painful - there aren’t many men who like the idea of having a needle injected into their testicles.

But Dr. Mesa says it’s not as painful as you might think due to the anaesthetic used: “Once the numbing meds kick in, you won’t feel anything,” he explained.

One Scrotox treatment costs roughly the same as Botox, at between £400 and £650. But given a lot fewer people see your testicles than your face (probably), the procedure seems quite expensive.