Toe Nails Coming off

[thelast2know]

I have just completed my first marathon and my toes have turned black and my nails are coming off. How can I prevent this happening in the future? Thanks

[bensmum]

Congrats on completing the marathon. The same thing happened to me after a fun run a couple of years ago and mine was down to my trainers being too tight! I got some decent shoes the following year and was fine. I take it that wasn't your problem? I try to wear socks with slight padding round the toe area and make sure that the shoes are loose enough for my feet to swell as they will do when exercising.