Neck pain may be related to falling pillow, long-term improper posture, cervical spondylosis, frozen shoulder and so on. 1. Falling pillow: it is a more common cause, due to the pillow is too high and so on, leading to long-term tightness of the neck muscles when sleeping, muscle pain performance, usually can be relieved by themselves. 2. Long-term improper posture: due to work and other reasons, long-term low head, caused by neck muscle spasm or aseptic inflammation, manifested as pain symptoms. 3. Cervical spondylosis: due to the herniated cervical intervertebral disc compressing the nerve root, resulting in local nerve dysfunction and symptoms of neck pain. 3. Frozen shoulder: some patients with frozen shoulder take pain as the main manifestation, which can be radiated to the neck, resulting in pain in the neck. There may be other reasons for neck pain, so it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then follow the doctor’s instructions for treatment.