Does a stress fracture always hurt when walking?

I just got off a second opinion consultation call with a runner who called because he thought he had a stress fracture, and he asked a great question... 

He said, “Well, I don't get it. It hurts every time I run, but it doesn't hurt when I walk. So, that means I don't really have a stress fracture, right?”

Does a stress fracture always hurt when walking? 

Well, that is a great question, and that is what we're talking about today on the Doc On The Run Podcast.