If you're out on a run, and you have heel pain that suddenly hurts a lot, you may have a calcaneal stress fracture, especially if you see bruising and swelling.

If you go see a doctor, they take an x-ray, and they don't see anything at all but they squeeze your heel and it hurts. The suspicion goes up.  

If your doctor gets an MRI that shows a calcaneal stress fracture, the doctor is probably going to tell you, "you can't do anything until the stress fracture heels."

Today on the Doc On The Run Podcast, we're talking about calcaneal stress fractures in runners and I have some good news and some bad news.