Today's episode comes from a discussion during a recent television fitness segment interview where I was actually asked about black toenails in runners.

If you've been running for a long time, undoubtedly you've had this happen at least once. I've had it happen multiple times.

I realized, after many years of racing, that if I did any run longer than about 20 miles, and I didn't do some specific things to really provide care for my nails and protect them, I would wind up with one of my second toenails bruised, discolored and painful.

Today on the Doc On The Run podcast we're talking about the top three reasons runners get black toenails after long runs and races.