Prolonged cycling does not increase testicular cancer risk, Slovenian urologist says

The high-profile diagnoses of testicular cancer among professional cyclists, such as Lance Armstrong and Ivan Basso, have sparked public concern about a potential connection to long-distance cycling.

Most recently, Norwegian cyclist Torstein Træen, who battled testicular cancer in 2022, wore the yellow jersey at the Tour de France. These cases, while notable, do not establish a causal relationship, according to medical experts. Urologist Sebastian Jeršinovič emphasizes that "there is no evidence that prolonged cycling is a risk factor for the development of testicular cancer."

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There is no evidence that prolonged cycling is a risk factor for the development of testicular cancer.

Jeršinovič acknowledges that some earlier, smaller studies suggested a possible link between activities involving prolonged pressure on the perineum and testicular cancer. However, he stressed that subsequent, more rigorous research has not substantiated these findings. Testicular cancer predominantly affects younger men, typically between 15 and 40 years old, which is also the prime age for professional cyclists, making such cases more visible within the sport.

While the cancer link remains unproven, prolonged cycling can lead to other health issues, primarily from mechanical pressure on the perineum. These can include temporary numbness, discomfort, or pain. Jeršinovič advises that these issues can largely be prevented through correct bike setup, appropriate saddle choice, and proper riding posture. He also stresses the importance of seeking timely medical attention for any changes, such as lumps or persistent pain, as testicular cancer is highly treatable when detected early.

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These can largely be prevented through correct bike setup, appropriate saddle choice, and proper riding posture.