With each crash you learn things about your riding style and technique that need improving. In the absence of mountain bike "coaches" telling you you're doing it wrong, this is how most of us learn and get better. I will also say after my first big crash in which i broke my wrist, it was a wake up call to control my speed, and appreciate safety gear. While I broke my wrist, all i had was a this cherry on my head and some mike tyson like ear damage that surely would've been the end of the big guy. I now use the appropriate safety gear for riding conditions without fail, and wont even ride my bike to the mailbox without a brain bucket. Nicks and cracks come with most all sports, and those poor orthapedic Dr's gotta make a living too, we're just doing our part.***note, I was still smiling***
"Mountain biking is like a night out in reverse...at first you feel like your going to black out and vomit, then you go drinking"