What causes the cracking sound in joints during movement?
Disease description:
I haven't exercised for a long time, and today after suddenly starting to exercise, I heard cracking sounds from my bones. What causes this? Should I be concerned about anything?
Doctor's answer (1)
Dr. Xu Shuai
Joint cracking during exercise, also known as joint crepitus, can be caused by various factors. Below are the common reasons for joint popping sounds:
1. Normal phenomenon: Gas dissolved in the synovial fluid of joints can form bubbles that rupture during joint movement, producing a cracking sound. This is a normal physiological phenomenon and generally not a cause for concern.
2. Insufficient exercise or excessive workout intensity: Both situations can lead to joint popping sounds during physical activity due to decreased joint stability.
3. Joint disorders: Joint popping during running can also occur due to cartilage wear, ligament laxity, or friction between tendons and bones.
4. Pathological conditions: Joint popping sounds during exercise can also be caused by joint subluxation (partial dislocation) or capsular laxity. Ligament laxity and tendon inflammation can lead to uneven joint surfaces or reduced joint stability, resulting in friction sounds during movement.
If the joint cracking sound occurs only occasionally during exercise and is not accompanied by pain or discomfort, it is usually considered physiological crepitus and generally not a cause for concern. However, if joint sounds are accompanied by pain, swelling, or functional impairment during exercise, you should seek medical evaluation at a hospital.
