Caused by the neck click always want to twist before comfortable reasons are many, such as cervical spine chronic strain, cervical spine small joint disorder, cervical spine articular surface wear, cervical spine small joint bubble and other factors. 1. Cervical spine chronic strain: prolonged low head work will lead to cervical spine around the soft tissues of chronic strain, edema, oozing, hyperplasia and other inflammatory reactions, which will cause cervical spine inflammation products and friction with the surrounding tissues and cause the neck rattle. 2. Cervical spine small joint disorders: due to long-term neck activities will lead to cervical spine small joint position dislocation, activities will increase the joints and the surrounding tendons, ligaments and other tissues of the friction and issued by the clicking sound. 3. Wear and tear of cervical joint surfaces: When the joint surfaces of the cervical spine are worn out, the joint planes are not smooth, and activities will increase the friction of the worn out joint surfaces and make a clicking sound. 4. Cervical spine small joint bubbles: there is a lubricating fluid between the joints as synovial fluid, and gas running into the synovial fluid during activities will form bubbles. When moving the neck, the joints of the cervical spine will move, and the small bubbles run out from the synovial fluid, causing a clicking sound. If a clicking sound occurs when you move your neck, it is recommended that you go to the orthopedic department of a hospital for an examination to clarify the cause.