Go see family doctor: You didn't describe what you were doing when this happened but assuming that you injured yourself, you need an x-ray to look for broken bone(s). At the very least, get evaluated looking for nerve damage. Otoh, many people can "crack their knuckles" w/o any pain. But if it hurts & causes numbness, it's time to get evaluated. Good luck!
Answered 6/26/2013
5k views
13 doctors weighed in across 3 answers
2 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question