I remember one time when I was 13 or so I had a bunch of hard bumps in my breast area, and I was worried about it, so after a while I asked my parents if guys could get breast cancer, and they said ya but its not as common, so I pointed out the reason for my worries and they took me to a doctor. He said it just had to do w/ teen development and it was like calcium or something and that it would go away after a while. And it did.