There are many causes of right neck pain, which need to be analyzed according to the specific situation. The common ones are chronic muscle injury caused by prolonged head bowing or favoring one side, as well as trauma caused by blows and collisions, which cause pain in the right side of the neck, which can be gradually relieved by moderate massage, hot compresses and activities. If the pain factor persists, or is accompanied by other symptoms of discomfort, it should be considered caused by pathological factors, the more common reasons are the following: 1, cervical spondylosis: mostly caused by degenerative lesions in the cervical spine, resulting in stimulation or compression of the surrounding nerves and blood vessels, which may manifest as right side neck pain at the onset; 2, frozen shoulder: mostly due to degenerative lesions in the soft tissues of the shoulder area, or long-term use of this part of the worker. Or long-term use of the part of the worker, which can easily lead to chronic injury in the peri-shoulder area. If the frozen shoulder is located on the right side, it mostly involves the right side of the neck, thus causing pain; 3. Swollen lymph nodes in the neck: due to bacterial and viral infections, the lymph nodes in the right side of the neck become reactive and swollen, compressing the nerves or blood vessels in the neck and causing pain on the right side of the neck; 4. Sternocleidomastoiditis: consider the chronic injury to the right side of the muscles caused by sudden head twisting or poor sleeping posture, resulting in stiff neck and sternocleidomastoiditis. This leads to stiffness of the neck and obvious pressure pain at the attachment of the sternocleidomastoid muscle, which can show the performance of the right side of the neck pain. In addition, oblique angle muscle syndrome, cervical cellulitis, thyroid nodules, tumors and other factors may also lead to the right side of the neck pain, so you need to seek medical attention for differential diagnosis, so as to take targeted measures to treat.