It has come to my attention that my Flat Head article has now become one on Butt Cracks!! I would like to say that having a flat head is in no way related to having a butt crack swirl on your head. Everyone has a crown/swirl (or bald spot which it has been called) at the top of the head and no matter how flat or round your head is, the swirl is still there. Sometimes the swirl can make the head look flatter because of the way or direction in which the swirl moves.