Bald spot on neck…?

[daphnelovesderby]

Hello, all!
I'm new here, so forgive me if this has been covered - but I did a search and couldn't find anything…

I've been noticing a bald spot on Daphne's neck - it's on the front, right where her collar sits - so I'm guessing that it's probably from the collar, right? She is pretty young and wants to chase the neighbors cats, so often she will pull hard against her leash when we go out - would that make sense for the bald spot?
Or, do I need to consider other possibilities? The skin is not irritated. She has bald underarms, as well, but has always been like that - and again, there is usually no irritation. We adopted her from an animal rescue in September, if that makes any difference...

Advice?
Thanks!

[tanza]

I would guess it is just the collar…

[Nemo]

How wide is the collar? If it is a narrow one, a wider one might be more gentle on her neck if she pulls alot when you walk.