Excuse me, what is bone ringing?

1, gas exhaust: Scientists explained that synovial fluid in joints is rich in oxygen, nitrogen and carbon dioxide, just like lubricant. When you press the joint, the pressure makes your joint capsule stretch or bend, so the gas in the joint cavity is quickly exhausted, forming bubbles and making noise;

2. Activities of joints, tendons and ligaments: When joints are active, the position of tendons will change slightly due to the expansion and contraction of muscles. When this tendon returns to its original position, you can hear some sounds, and so can the ligament. Ligaments will be tight and brittle during activities;

3. Uneven articular surface: When the inflammatory joint bounces, it is mainly because the cartilage that plays the role of pressure buffering or protection in the joint gradually loses its smoothness, and the hyperplastic or uneven articular surface is rubbed.