It either means that it is worked or if it always breathes hard it might have trouble breathing. If it always breathes hard, then you might want to talk to a vet.suggest more info to give better...
My dog has several types of bumps, so I understand your concern. Soft bumps can be clogged oil glands, sebaceous cysts, or benign fatty tumors. The vet told us not to worry about any of these. You...