Can I run with arthritis in my ankle?

I got a call from a runner who has a really interesting situation. He's been doing lots of running, but he's been getting pain in his ankle whenever he runs.  He gets a little bit of swelling in the ankle at the end of the day.  But when he wakes up, the swelling in the ankle is completely gone.  The ankle swelling is completely resolved and he seems fine the next morning. So his question was, “Can I run with arthritis in my ankle?” Well, that's what we're talking about today on the Doc On The Run Podcast.