Do you mean in professional sports? In my Steroids In Baseball hub, I discuss the problem with steroids in the MLB. Two major ways to discourage the use of steroids that I talk about are marking steroid-using players' records with asterisks or something and by not allowing players who have been proven to use steroids into the Hall of Fame. Also, the rules that are in place now should be kept such as: suspensions, random testing, and greater punishment and longer suspensions for repeated offenses.