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What causes the noise when you crack a joint?
Your joints can make a variety of sounds: popping, cracking, grinding, and snapping. The joints that "crack" are the knuckles, knees, ankles, back, and neck. There are different reasons why these joints "sound off". Escaping gases: Scientists explain that synovial fluid present in your joints acts as a lubricant.
What causes the noise when you crack a joint?
Your joints can make a variety of sounds: popping, cracking, grinding, and snapping. The joints that "crack" are the knuckles, knees, ankles, back, and neck. There are different reasons why these joints "sound off". Escaping gases: Scientists explain that synovial fluid present in your joints acts as a lubricant.