More patients will have cervical reverberation when they move their necks, the reasons include the following: 1, physiological reverberation: physiological reverberation before the occurrence of reverberation, often have cervical spine in a long-term stationary state or a certain position state, then if the sudden activity, cervical spine may be because of the pressure release within the small joints of the cervical spine, resulting in reverberation, in this case after the occurrence of reverberation, there will not be any pain or limited activity; 2, pathological reverberation: the disease patients due to degenerative changes in the cervical spine such as osteophytes, disc herniation, ligamentous hypertrophy, calcification or small joint misalignment, Pathological ringing: common in patients with cervical spondylosis, due to degenerative changes in the cervical spine, such as osteophytes, herniated discs, ligamentous hypertrophy, calcification or small joint misalignment, there will be a snapping sound when the cervical spine is active, accompanied by a series of performance such as neck pain, stiffness and unfavorable activity; 3, cervical joint instability: prolonged head down or repeatedly rotate the cervical spine, there will be cervical small joint dysfunction The joint capsule relaxation, resulting in joint cartilage rubbing against each other, causing cervical reverberation; 4, local tumors, infectious lesions, etc., can also damage the stability of the cervical spine, resulting in cervical reverberation.