Patchy Hair Loss On Legs

my dog has lost his hair on one side of the leg and is also very uneven, dry skin, where hair is lost.?
It's a good idea to carry vet. It could be anything from a grass flea allergy / moth.

my dog has lost his hair on one side of the leg and is also very uneven, dry skin, where hair is lost.?
It's a good idea to carry vet. It could be anything from a grass flea allergy / moth.