Steroids can have long-lasting and sometimes irreversible side effects on the body. Anabolic steroids have been linked to increased cholesterol, stroke and blood clots, urinary and bowel problems, and problems with the musculoskeletal system. Since steroids are a hormone, much like testosterone, the effects on sex characteristics can be far reaching, causing a kind of hyper-masculinity in young men. They can also cause male-pattern baldness and shrinking of the testicles. The excess of testosterone can also have feminizing effects on young men, such as breast development. (Jerry Adler, 2004)
According to this anonymous professional, no health problems exist in any of the Mr. Olympia (largest annual and most competitive bodybuilding competition in the world) today. Just recently, Mike Matarazzo sustained a serious shoulder injury and Fukes (both well-known professional bodybuilders) blew out both of his knees but neither were from the use of steroids. I know of no ex-pro bodybuilders that are having health problems as a result of using steroids. The media (and government) will tell you all kinds of horror stories, but conveniently leave out the fact that the people having health problems were also mind-altering drug users.