I don't know if it caused by shaving my head or if it is always there... but it look's real bad in comparison to the rest of my scalp which is white and clear.

The spots or marks whatever they are don't hurt or itch and are flat.... if it wasn't for knowing they are there i would never know about them... it's just in my line of work i do stand sit in front of people and i'm paranoid about people seeing it sat behind me.