While steroids and other PEDs are not required for competitive bodybuilding, it is often used by many pro athletes in order to achieve super-human-sized muscle. Most often, these kinds of substances require injections. Over time, these injections can cause lumps of scar tissue that are unpleasant visually. This is particularly a problem for bodybuilders - whose goal is to sculpt a perfect physique. So how can this be avoided? In the latest episode of the Generation Iron Podcast, Victor Martinez gives advice on how to avoid scar tissue caused by steroid injections.