Since the time I started training for my first marathon about 4 years ago, I have heard many accounts of the prevalence of blackened toenails and/or toenails falling off as a result of running. It kinda grossed me out at first, but I accepted that it will probably eventually happen to me. Maybe I've been blessed with perfect-for-my-feet running shoes, but over the course of the last 4 years, I have never had a single problem with any of my toenails. And to be honest, it wasn't until last week that I heard a first-hand account of it actually happening. I began to wonder, "How frequently does this happen? Does it really happen as often as they say? Am I an anomaly?" In an effort to uncover the truth, I am creating a poll: Have you personally ever had a toenail turn black and/or fall off as a result of running? To respond, see the poll in my sidebar (just below my Boston Marathon countdown). Thanks for your help!
UPDATE: See my recent post with survey results and a few suggestions.