 About one in six men will be diagnosed with prostate cancer during his lifetime, and you or someone you love could be one of them. Hello, this is state health officer Dr. Don Williamson. While some men with prostate cancer experience changes in urinary or sexual function, it's important to remember that many cases are first detected by a doctor during a routine checkup. If you're 50 years of age or older, ask your family physician about a prostate cancer screening during your annual physical. Men who are at higher risk for prostate cancer are encouraged to begin testing at age 45.