It may sound a little ridiculous, but there are many ways a runner may end up causing common injuries upon themselves. Its common in sports today to try and just "walk/run it off," but this actually increases your chances of causing further harm to yourself in the long run. While running can be challenging, it should not hurt. This is why Jen Van Allen of Runner's World Magazine, wrote a blog on Common Injury Prevention Mistakes for Fleet Feet Sports. You can check out this recent blog here.