Virtually everyone that abuses anabolic/androgenic steroids for physique- or performance-enhancing purposes notices some form of adverse effects from their use. According to one study, the exact frequency of tangible side effects in a group of steroid abusers was 96.4%. This shows very clearly that it is far more rare to abuse these drugs and not notice side effects than it is to endure them. In addition to the side effects that anabolic/androgenic steroids can have on various internal systems, there are others which may not be immediately apparent to the user.