How Is It Possible For the Forelock to Remain but Bald All Around It?

Dear Dr. Rassman,

How is this possible? I’ve noticed this celebrity whose entire forhead is bald except for a little stubborn patch in the middle. It doesn’t make any sense. How can the entire forhead go bald while a little patch remains? Does not DHT miniturize all the hairs? Here is the picture of the celebrity below and another picture I found with a gentlemen who has the same pattern.

Celebrity – John C. McGinley

PG.com patient

I’ve been asked about this before, and I always point to David Letterman, who has a persistent forelock and hair loss around it. This is a genetic trait (shown well in your photo references) which is common in some families. I see it quite often.