Should i have my finger x-rayed? i don't know if i jammed, sprained or broke my index finger. i assume i didn't break it because i can bend it at the second joint at a 90 degree angle, but with slight pain, i'm assuming the best idea is to ice and tape it

If : If you can bend the finger, then it's unlikely that you've got a major break that goes across the bone. However, it is possible to break off the part of the bone where the ligaments or tendons insert (called an avulsion injury). Failure to treat an avulsion injury by immobilizing the joint in a proper position can lead to an unstable joint that's prone to dislocation or degenerative joint disease. Though they aren't free, xrays of the finger should not be too expensive and knowing there's an injury so that it can be treated correctly is worth the cost.

Have it evaluated.: If you continue to have pain have it evaluated by a professional and get the appropriate treatment.