#21 Cracking Of Knees Or Just Gas Bubbles Bursting?
When there is a movement in the joints, the little bubbles are released that causes the click, snap or pop sound. The technical term used for this noise is called ‘crepitus that originated from the Latin word ‘to rattle’.
When the synovial fluid that acts as a lubricant in the joint forms gas cavity because of the low pressure in the joint spaces, the pop emerges. It can be alarming at times and can be a sign of a serious orthopaedic issue.