Harvard Health Tips
Sounds made by joints
Do your hips and knees click, snap, or pop? If there's no pain or swelling, the noises usually aren't a sign of trouble. It's a different story if the noise occurs at the moment of injury, or if pain or swelling accompanies it; in that case, there may be joint damage that needs medical attention. A grating sound called crepitus may be a sign of arthritis.