Joint ringing is usually not due to calcium deficiency, but other causes, mainly due to articular cartilage wear, meniscus injury, joint free body, congenital joint laxity, etc. Calcium deficiency can lead to cramps in hands and feet, perioral numbness, and increased neuromuscular excitability, etc., but will not result in joint ringing, so there is no direct connection between the two. Once joint rattling occurs, patients should be accurately judged according to the above categories of diseases, and the diagnosis should be confirmed by MRI and X-ray examination. After the diagnosis is confirmed, treatment should be actively carried out, including injection of sodium vitrate into the joint cavity, minimally invasive arthroscopic surgery, and exercise of peri-joint muscles, etc., which can lead to the relief of clinical symptoms. Patients with symptoms of calcium deficiency present need calcium and vitamin D supplements and a balanced diet.