"If testicular cancer runs in your family, it's vital to be screened frequently, especially if your relative was diagnosed young," says College of Osteopathic Medicine Assistant Professor William Blazey, D.O., in Men's Fitness. "If they were diagnosed later in life, environmental causes -- like exposure to radiation -- may be a factor."
Blazey advises men to decrease stress "wherever you can" and avoid smoking as preventative measures for prostate cancer, and he urges men to talk to their doctors about exams and tests. "The best person to detect testicular cancer is you, via a self-exam," adds Blazey. "Once a month, in the shower, check yourself to see if you feel any lumps, bumps or pain. If you do, go right to a doctor."