There is a large percentage of balding men. Most male baldness begins in a man's 30s or 40s, although it can happen later or earlier. If you have genetic-related hair loss, this could start in your 20s. It is reported that at 30, a man has a 25 percent chance of some balding, and by 50, this can be a 50 percent chance. The older you get, the higher the increase in balding.