Can anyone tell me if puppies' skulls develop asymetrically when they grow? I have just noticed a hard ridge on my 4 month old pup to one side of her head, she is as happy and skittish as ever, and there is no sign of tenderness or soft swelling, it has develpoed in the last few days.  I hesitate to ask the vet at this point as I am not sure he will know what it is, anyone had any experience of this?

Anyone?

Wish I could be more helpful but have no idea whatsoever.

  I would ask your vet next time you see him to have a look at the pup... It's difficult to say if there is no picture of the bump.Is it a bony bump or does it seem swollen,like a bruise?
Link here....some one has asked a vet a similar question.....
http://www.justanswer.com/pet-dog/35v87-one-year-old-golden-retriever-named-genny-couple.html