Rattling of the bones, if accompanied by other symptoms, may be caused by calcium deficiency, meniscus injury and other factors. If it is not accompanied by physical symptoms, it is also considered to be caused by physical factors such as strenuous exercise and inadequate preparation before activities. Calcium deficiency is mainly caused by a large amount of calcium loss from the bones, and patients may experience symptoms such as bone ringing, muscle cramps, low back pain, fatigue, and susceptibility to fracture. Bone ringing should also be considered to be caused by meniscus injury, which may be caused by knee twisting, long-term weight bearing, chronic strain and other factors. Patients may experience pain, swelling, joint popping and other symptoms. Bone ringing not accompanied by other uncomfortable symptoms, may be strenuous exercise, resulting in bone joint popping. Or consider the activity before the preparation is not sufficient, resulting in excessive friction caused by the joint surface, such cases are normal phenomena, do not need to worry too much. There are many reasons for bone ringing, so we suggest that patients go to regular hospitals in time to undergo relevant examinations, so as to clarify the cause of the disease. Once diagnosed, the patient should actively cooperate with the doctor to take relevant treatment measures.