For patients with muscle stiffness and pain in the back of the neck, first, it is caused by strain, which is associated with prolonged head-down activities, resulting in excessive stretching of the muscles, fascia and tendons in the back of the neck, causing spasm and strain, which can cause obvious muscle stiffness and pain in the back of the neck. Second, see in cold, this condition also easily lead to the soft tissues of the back of the neck after the cold excessive contraction, will also cause obvious muscle stiffness and pain in the back of the neck. Third, it is seen in the case of bone degeneration and osteophytes in the neck. When moving around, the osteophytes will stimulate the surrounding soft tissues, resulting in edema and spasm of the tissues, which will also lead to the obvious stiffness and pain of the muscles in the back of the neck.