So, my doctor retired and I got a new one but I'm not sure I'm going to keep her. When she found out I bicycle a lot she warned me not to wear lycra shorts because they would overheat my testicles putting me at risk for testicular cancer. She mentioned Lance Armstrong. So, is she completely off the wall on this or is there any evidence at all to suggest that lycra bicycling shorts increase the risk for testicular cancer. Obviously Lance Armstrong by himself is not evidence.