What makes the “crackling noise” when an adjustment is delivered?
While some people may get nervous about the “pop” that an adjustment can produce, the sound is not coming from the bones themselves. It’s coming from a lubricant called synovial fluid that’s found in every joint. That fluid contains dissolved gases. Shifting the joint with an adjustment into proper motion and alignment releases the built up pressure that has resulted from the joint being subluxated. This causes a shifting of the fluid and gasses in the joint to make a crackling noise.
