What does it mean when veins show in a dog's ears?

Don't mean nothing, they show in a lot of dogs.

thin skin in ears

Well, I really thought it meant the dog is stressed. Do you ever argue in front of him with another person or do u have another animal He/she isnt used to being around or doesn't like? Mainly that would be the problem. AJ

it means nothing, the ear is just thin skinned and less hair on it.