Skin infections that can become severe if the drug was tainted with bacteria.
Irritability, rage, aggression, violence, uncontrolled high energy (mania), false beliefs (delusions), and addiction.
Teens who take illegal anabolic steroids are at risk for the same problems as adults who use them. Also, bone growth in teens may stop before it is complete. The teen may not reach his or her full adult height.
People who use anabolic steroids on a routine basis can have withdrawal symptoms when they stop taking them. Symptoms include having depression, being extremely tired, and having no desire to eat.