What causes crackling or popping noises in the knee?
Snap, crackle, and pop! It makes a catchy slogan for a breakfast cereal. But when you hear those noises in your knee, they are a cause for concern, especially when accompanied by pain. Some people hear sounds like crackling tissue paper when they bend or straighten their knees. Known as crepitus, the noise occurs when … What causes crackling or popping noises in the knee?