What is the cracking sound that occurs during a chiropractic manipulation?
Joints contain a lubricating fluid known as synovial fluid. Within the synovial fluid are dissolved gasses, mostly carbon dioxide. When a joint is adjusted/manipulated, a vacuum is created within the joint and the dissolved gasses come out of solution forming a gas bubble, creating a “cracking” sound. The cracking sound is not necessary for treatment to be successful.
