Joint popping on movement is clinically known as joint popping and is not directly related to calcium deficiency. The main causes of joint popping include physiologic and pathologic. 1. Physiological joint popping: because of the presence of gas in the joint cavity, when the joints move, when the gas bubbles inside the joint cavity rupture, it will make a sound. In addition, when the joints move, the ligament muscles rub the joint surface may also make a sound. This is a normal physiological phenomenon, usually without discomfort. 2. Pathological joint popping: when patients have osteoarthritis, meniscus injury, joint hyperplasia and degeneration, ligament injury and other joint lesions, resulting in synovial membrane roughness, joint capsule, ligament laxity, tendon hyperplasia or tendon sheath stenosis, rupture of the joint disc, and articular cartilage detachment, etc., popping will be produced by the friction of the above mentioned tissues when exercising. Although joint popping may also occur with osteoporosis caused by calcium deficiency, calcium deficiency is not the direct cause of the popping. If there is no obvious cause of joint popping in the long term, you should go to a regular hospital in time to get a clear picture of the cause of the disease and then carry out symptomatic treatment, and do not blindly take calcium supplements to avoid delaying your condition.