Serious and life-threatening adverse effects may be underreported, especially since they may occur many years later. Most data on the long-term effects of anabolic steroids in humans come from case reports rather than formal epidemiological studies. However, others may be permanent or semi-permanent. Most are reversible if the user stops taking the drugs.
A variety of side effects can occur when anabolic steroids are misused, ranging from mild effects to ones that are harmful or even life-threatening.
