Although illegal in athletic competition, the use of steroids is not illegal per se. Amateur body builders and in some jurisdictions, the professionals too are free to use whatever aids they need to use. That being the case, many people will have no qualms about reaching for the medicine cabinet to make things easier and even more efficient. There is no question, however, that steroids can only give so much because they borrow from what you already have. The damage that can result from this is a very good reason to think long and hard before deciding to use steroids.
One has only to look at the highly publicised cases of some high-profile individuals to see what damage steroids can do. More than one professional athlete has died as a result of the long-term effects of steroids, as the extra boost that they give can put an undue strain on the heart and other internal organs. Even upon retirement, the effects that the use of steroids can cause will mean that a user needs to be very careful with the effects of artificial help. And this is before we get to the famed effects of roid rage, which can turn an otherwise placid individual into a person given to bouts of unprovoked anger.
In the end, it is up to the individual if they want to use steroids to get the boost that takes their training to the next level. But ask any doctor and they will tell you that there are huge downsides to relying on the effects of steroids, against a short-term, superficial upside.