I think it is all tied together. If you go bald on top, you gain plenty more on your ears, nose, back and shoulders. It certainly happened to me. I was able to grow back most of my hair with Minoxidil and Proscar, but still have the hairy ears and back.
Anyway, all of this crap is caused by Dihydrotestosterone, or DHT. Evil stuff. It is a testosterone byproduct that causes all of the symptoms I listed. If you produce a lot of testosterone, you produce a lot of DHT.
Lazer treatments. I'm doing it this fall. No more hair on parts I don't want it to be. Fairly reasonable from my price quotes but I heard it hurts like a mutha...3-4 treatments.
I have a full head of hair approaching 50, but the ears, nose, and back just keep picking up speed.