if you're prone to balding, some steroids will speed up the process... like a blast to the future...10, 20, 30 years maybe
if you were suppose to have your hair where it belongs all your life... you're still gonna have it
i can do whatever the fuck i want in terms of anabolic-androgenic abuse, shoot all the supposedly hair killing roids i want and not a single hair falls out
same goes for the opposite - hair growth in the 'undesired places'. hell, i can't even grow a beard on ridiculous amounts on test for months on end
tl;dr - shits in your genes yo