Cervical bone clicking is considered to be due to physiological reasons, tendon ligament and joint friction, wear and tear of cervical joint surfaces and other reasons. 1. Physiological reasons: there is synovial fluid between the cervical joints, which plays a role in lubricating the joints, and gas bubbles are formed when gas enters the synovial fluid. When the position of the neck changes, the cervical joints move together and the gas bubbles come out of the synovial fluid and make a clicking sound, which is a physiological phenomenon. 2. Friction of tendon ligaments and joints: When working with the head down for a long time, the neck muscles will remain tense and the tendon ligaments will be displaced to a certain extent. When the position of the cervical spine changes, the misplaced tendons and ligaments will friction with the joints in the process of returning to the original position quickly, and clicks will also occur. 3. Cervical joint surface wear: If the small joints of the cervical spine itself have mild joint wear, the cervical spine activities will cause joint friction, and produce a clicking sound. When the cervical bone clicks, if it is a physiological phenomenon, there is no neck pain and discomfort and other symptoms, generally do not need special treatment. If there is neck pain or limb numbness and other symptoms, you should go to the hospital in time for further diagnosis and treatment.