Knuckle cracking is the act of pulling or bending your fingers to create a popping or cracking sound. This sound is typically caused by the release of gas bubbles in the synovial fluid that lubricates the joints.
Knuckle cracking is the act of pulling or bending your fingers to create a popping or cracking sound. This sound is typically caused by the release of gas bubbles in the synovial fluid that lubricates the joints.