It doesn't say the cause, but it's kind of weird; I can run, bike, swim and do everything I like but if I slip like on ice or miss clipping in on the bike or sit on the cat, wow that hurts. I did the damage around Christmas and at first I didn't think much of it and didn't go back to the doc for a couple months. Xrays looked good so he said to give it a few more months to see how it would go, but it didn't get better.
Oh yeah, I did it in a spectacular mountain bike crash, total yard sale! I rode out but ended my ride for the day and I ran the next day. In the beginning the worst part was getting into or out of my truck, I had to use my hand to help lift the leg. Then I missed clipping in on the bike and yikes! that hurt. So I'll see how it goes. I hope this can heal on it's own. I hope I can finish my racing season. It has been going great so far..