Last thursday, I fell off my bike and sprained my wrist. At least, I thought it was just sprained. I considered having an x-ray to make sure it wasn't broken but decided against it. Yesterday I went to the hospital to have it x- rayed. Turns out it was broken. If I hadn't gone to the hospital it proably woundn't have healed, not that it has healed yet.
So remember, if it dosen't look that bad, it could be worse than you think.