This. This is f*****g why I'm on this forum. You people have the Norwood eye.
I thought A LOT about that discoloration on bald scalps. It does not happen on non bald area, no matter how much you shave them so it doesn't seem to be age related (saw 2mm buzzed NW2 70 year olds with no sign of this discoloration).
In my opinion it might be related to two things, not mutually exclusive:
1) Sun damage. Sunrays tend to damage skin. How come this kind of phenomenon does not happen straight on the forehead, but only and exclusively on the Norwood area?
2) Scalp tightening. A tighter scalp creates constant fractures in the skin and a scar like appearance on the top of the head. The scalp tightening contribution to balding has long been talked about, but never proved so it's unscientific to talk about it as an official cause of hair loss. I am deeply convinced it has something to do with balding, especially with vertex barring and hairline recession, since I've always noticed that fullheads can move their scalp NO MATTER THE AGE, while baldheads cannot. I notice it every day on my self: the horseshoe eternal hair area has a way looser scalp than the barren NW3 temples. It makes me rage for some reason because I feel it's linked with hair loss. I do scalp exercises every day when I'm alone. The cause might be DHT itself.
As always, the scientific community never answered this question. How can a very common discoloration on bald heads go completely unnoticed to doctors? Because we're a kind of subhumans to the fullhead/woman eye.