Brusing after running

I have not ran in quite some time. This weekend I ran a 1 mile fun run with my children. Now I have brusing on the backs of my thighs. I was just wondering what that might be?

[hanaguchi]

Everytime I paly with my sons I feel as i I come back bruised. I run extensively and don't think that the bruising was due to the mile run. You must have hurt yourself. Hopefully it will go away soon. Also if you plan on keeping up wih your children staying in shape is a good idea.

[mikenpaula]

I also bruise every time i workout. And (no) to the recent comment(you did not hurt yourself and not remember it) i hate when docs say that. The bruising was due to the run. It happens to me everytime.I also wondered why but have never really found out.