Something to be aware of with anabolic steroid side effects is that they have emotional effects as well as physical (like the well-known "roid rage"). And for safety in both these areas, going *off* steroids requires very careful monitoring.
I read about a terrible case several years ago where parents discovered that their teenage son was using anabolic steroids - he was a high school athlete of some kind and it was going around his team. There was a big scene when the parents found out and the kid agreed to stop taking them. They flushed his supply down the toilet.
But withdrawal caused him to go into a depression, and he committed suicide a short time later. Had the parents consulted a doctor, the doctor could have overseen the process of stepping down gradually off the steroids and saved their son's life.