My 2 cents...
If you use steroids, expect that you might just experience the negative side effects. I would NEVER go near them myself. I may not be the most ripped guy in the gym, but at least I don't have acne all over my back and arms, thinning hair and breast tissue that just keeps growing and growing. Yup, steroid users may look great at 22 but let's see how they look at 32, especially if they are not working out as often as they did in their youth. A bad, bad idea.
I just don't know what to say. If you use steroids, this is what will happen. I suppose you could stop, but you will still have breast tissue. In this case, surgery is the only option, no ifs, and or buts. It's really very simple.
There are a lot of obvious steroid users at my gym. You see these high school kids go from skinny to freakin' stacked in no time at all. If you have any doubts about what's going on, the gross acne on the back of their necks give it away rather quickly.
There is one guy in particular who most certain has developed man-boobs right in front of my eyes. He is tall and lanky. His legs look like those of a stork. Yet his chest, arms and shoulders are HUGE. I figured he had to be on steroids. Despite his goofy looking teenager legs, his upper body was impressive. Of course, his chest was flat and well defined. I would have loved to have a chest like that.
Didn't see him for a while and now I see him all the time. He is even bigger. However, his chest now looks quite different. Although he ALWAYS wears tight Under Armor-type shirts, you can see very clearly that his nice, flat chest is now bulging forth with very distinctive pointy boobs. Even his tight Under Armor cannot hide it. And it's amazing how quickly and obviously he went from good to bad. So, now, he has gynecomastia and will have it unless he gets surgery. It's really, really sad. In his effort to "cheat" and be one of the most built guys at the gym, be probably is ashamed to have his shirt off despite having an otherwise massive physique.
I hope other people at my gym who might be considering steroids have taken note of this and can see what just might happen to you if you go down the cheater's path.