Scaless (scar?) spot on my BP's head

I have a BP that has a spot on her head that has spaced out scales. I've noticed this since I got her and thought it might've been a scar. so about 1 in a half years later, its still there. I'm not really too concerned about it, I just want to know what you guys think.
Pic:
http://i557.photobucket.com/albums/s...pskzn573z5.jpg

Looks like a rub or a difficult shed maybe like you said it doesn't look to bother her at all so I guess just a little extra character ;) she is a beauty..

Ok! Thank you.:P