If you've ever stood up after sitting for a long time and heard a pop from your knees or hips, that's less about the gas bubbles in your joints. "[Crepitus] can also occur when ligaments or ...

Experts don’t agree, but there are few knuckle-cracking models. Cavity joint space and gas bubbles. Cavitation is when bubbles get pulled into a fluid, grow, and cave in. Your knuckles have a ...

Previous research had suggested that the collapse of the bubbles can generate the cracking noise, but others argued that pressure changes produce the sound, Barakat tells The Guardian. Images of ...

it’s actually caused by joints being pulled apart slightly, reducing the pressure in the fluid between them, and causing gases dissolved in the fluid to form bubbles which then burst (a process ...