Is there any proof to the steroids stunting growth theory? Ie any research or anything or is it all just theory? I've struggled to find any actual evidence that taking steroids would stunt growth other then the increased estrogen theory which seems flawed to me, as even though estrogen is thought to lead to quicker or premature closure of growth plates I doubt that a short period of increased estrogen during post cycle until levels are brought back down would make any significant impact on growth.