gen it will heal itself but it may end up bent !!if it looks ok and not away to the side id b tempted to leave it ,,my mate broke his yrs ago ,,went to hospital ,,the doctor /nurse guy just wiggled it about causing great pain to my mate and kinda straightened it a few bits of masking tape(well looked liked it )and sent him home ,,the hospital never done a really good job imo ,,its straight but theres a big ridge about half way down ,,gets called all sorts now ,,wants to get it fixed ,,looks like a boxer!!!