ft. Jeremy Kinder, MD, orthopedics
Simply put, cracking your knuckles feels good. It loosens up your knuckles and you might experience increased joint mobility in the few minutes after cracking. Some people who habitually crack their knuckles might do it as a nervous twitch, or as a response to stress, says Jeremy Kinder, MD.
But could the habit cause osteoarthritis, the wear-and-tear type of arthritis?