November is the time of the Movember movement, which encourages growing a mustache during the month to raise awareness of men's health issues, like those involving the prostate.
Dr. Matthew Tollefson, a Mayo Clinic urologic oncologist, explains how a growing prostate can cause problems.
Prostate cancer affects more than 250,000 people in the U.S. with about 60% of cases diagnosed in people over 65.