Have you ever had a toenail turn black and blue, and maybe even got so much of a bruise that the toenail fell off?

A lot of runners think of bruised toenails as a badge of honor for doing super long runs and completing marathons.

But you do not want toenails to fall off!

Believe it or not, I have had runners ask me  if I would permanently remove their toenails so that they would no longer get black toenails. But I do not recommend it.

What is the number one most worrisome problem when you lose a toenail from running? 

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