Throbbing, aching, or shooting pain in the knuckles can result from an injury or an underlying medical condition, such as arthritis or a cyst. The treatment for knuckle pain may depend on the ...

I’ve got my fair share of unconscious habits: running my hands through my hair, tapping my feet, pursing my lips when I’m concentrating—and, of course, cracking my knuckles. That last one is perhaps ...