6 month old. Large area with fur missing

Does this appear to be colour dilution Alepecia?

Doesn’t appear to be sore or itchy and I’m told the patch has been there since birth and has grown with her.

Any suggestions as to trying to help the missing fur grow?

Hi & welcome.

That doesn't look like CDA to me - is the skin normal or is it rough & thickened? Has a vet ever mentioned it? How old is your pup?

I've got to say, I've only ever seen a patch like that when it has been deliberately shaved! I'm flummoxed if it's been there since birth! What did the breeder say it was?

Thanks for your reply.
When breeder took to vets they apparently did tests and nothing came back.
The skin isn’t thick or sore. It’s just got much less hair growth!

She is 6 months old.

Well, then, I'm sorry, I've no idea! I'm 95% sure it isn't CDA though, if that's any help? It just doesn't seem to follow the normal progression.

I can't help either only ever seen that after the dog has been shaved