For decades, knuckle cracking has been blamed for arthritis and joint damage. Scientists now say the sound comes from gas ...

That satisfying pop from knuckles or unexpected crack from knees during stretches often puzzles both medical professionals and patients alike. While these sounds can startle or concern some people, ...

Sponsored by Charles Theofilos, M.D. Do you twist or tilt your head to the side and your neck cracks? This is actually a common occurrence, but you may be wondering why your neck does that and — more ...

Doctors refer to the cracking or popping of joints, like the shoulders, as crepitus. Though crepitus happens often, the reason that joints pop is not always clear. Cracking, clicking, and popping ...