I hurt my knuckles yesstday. pain buried. want know if i break?

X-ray: An x-ray will show if you have a break, (fracture). Your primary doctor can examine you and tell you if you need an X-ray. If you don't have a primary doctor you can go to an urgent care center or ER for an exam and/or x-ray. I hope this helps.

Without an exam?: Based upon the word 'pain' there is no way to give you any valid answer. To answer your question you need an examination and probably X-rays.