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Source: health

Cracking and popping joints, medically known as crepitus, are normal. Joints are points in your body where two bones meet. You might occasionally hear your knees popping or notice your back or bones crack as you move them.

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  • Animas Orthopedic Associates
  • Animas Surgical Hospital
  • American Academy of Orthopaedic Surgeons
  • Arthritis Foundation
  • American Association of Hip and Knee Surgeons