The Bizarre Science Behind Ski Jumping’s Penis Gate Scandal

As the 2026 Winter Olympics begin, ski jumping faces its strangest controversy yet. Athletes allegedly injecting their penises with hyaluronic acid to gain aerodynamic advantage has officials scrambling for answers.

When Size Really Matters

Adding just a centimeter of fabric to the circumference of that part of a suit increases flight distance by approximately 2.8 meters — or more than 9 feet, according to recent research. This isn’t about vanity. It’s pure physics. A larger suit means extra fabric to catch air like a sail and prolong a ski jumper’s flight. A study by the scientific journal Frontiers found that just a 2-centimeter increase in suit size could add five to six meters to the length of a jump. In a sport where victories are measured in millimeters, those extra meters could mean the difference between gold and going home empty-handed.

The Injection Allegations

Then the German tabloid Bild sparked further curiosity in January when it reported that ski jumpers have worn condom-like sleeves filled with hyaluronic acid to enlarge themselves before measurement. The allegations go further. This week, the organization addressed January reports from German newspaper Bild that ski jumpers had injected hyaluronic acid in their penises before being measured for their suits. While not banned in the sport, hyaluronic acid—a lubricating substance often used in skincare—can be injected to increase the penis’ circumference by one or two centimeters, which according to the FIS could add a few millimeters of fabric in the suits. The World Anti-Doping Agency will look into allegations that ski jumpers are injecting hyaluronic acid into their penises to gain aerodynamic advantage at the Winter Olympics 2026.

Medical Reality Check

Hyaluronic acid injections for penile enhancement are a real medical procedure. Hyaluronic acid is a natural substance that can temporarily increase the girth of the penis, with results lasting up to 18 months, according to some 2024 study involving 155 male participants, those who received multiple hyaluronic acid penile injections had an average girth increase of 1.8 centimeters (cm). Twenty-three men who received four treatments or more experienced an average girth increase of 2.952 cm. But it’s not without risks. During the entire 6-month follow-up, 4.3% had complications such as subcutaneous bleeding, subcutaneous nodules, and infection. More serious complications can include adverse effects like local responses, discomfort, edema, and granulomas.

Official Denials and Investigations

“There has never been any indication, let alone evidence, that any competitor has ever made use of a hyaluronic acid injection to attempt to gain a competitive advantage,” FIS communications director Bruno Sassi told BBC Sport. Yet the allegations persist. “It is a topic that was spoken about quite a lot a month ago in the ski jumping world,” Prevc, who won silver at the Beijing 2022 Olympics, said in an interview, adding that he had never done this, nor knew of anyone doing it. “Ski jumping is very popular in Poland, my home country, so I assure you I will investigate this matter,” said WADA’s President Witold Banka during a press conference. The agency’s director general, Olivier Niggli, added that while the agency is not aware of these practices, it will be on the lookout and check if these practices could be considered doping.

A Sport’s Integrity Crisis

This scandal didn’t emerge in a vacuum. Two Norwegian Olympic medallists, Marius Lindvik and Johann Andre Forfang, were suspended for three months last year after their team was found to have secretly adjusted seams around the crotch area of their suits at the 2025 World Ski Championships. There is, as Finnish coach Petter Kukkonen put it last April, “a culture of cheating” in ski jumping. The sport has implemented new measures for the 2026 Olympics, including pre-competition 3D body scans and microchips in suits to measure suit size based on each athlete’s anatomy. Whether these measures can restore faith in a sport where aerodynamics and ethics have become uncomfortably intertwined remains to be seen.