Hairloss on side on head....

[sausage]

After looking at a lot of photos I notice that a lot of guys have thin hair on the sides of their heads.....

And by this I specifically mean the area at the front, closest to the face, above the ear/by the temple.

I have thinning their myself.....

Is this area of the head naturally thinner in humans or does it also thin out when people start balding?

I notice when extracting donor hair this side-front area is not used, I assume this is due to my points above.

[Dr. Glenn Charles]

You are correct. It is relatively common for patients with Male Pattern Balding to experience thinning/ hair loss in the temporal area. That area can be transplanted in some cases.