The neck pain when lowering the head can be caused by the following reasons: first, cervical spondylosis, cervical spondylosis can have degeneration of the cervical spine and lead to neck pain when lowering the head, which can be accompanied by symptoms of numbness and weakness of the limbs, which should be examined by cervical spine X-ray, CT and MRI for diagnosis and early treatment. Second, supraspinous ligamentitis, supraspinous ligamentitis can also have pain in the neck and the spine of the thoracic back when lowering the head, and the pain is very obvious when exerting and getting cold, so early examination and examination should be conducted to exclude other diseases for diagnosis. Third, cervical spine tuberculosis, cervical spine tuberculosis can be seen in adolescents or adults, can be accompanied by systemic symptoms, such as low fever or loss of appetite, can have symptoms of neck pain when lowering the head, then we should check the cervical spine CT, MRI and blood tests to diagnose and treat. Fourthly, calcification of the collar ligament can be the degeneration of the collar ligament of the cervical spine and lead to the symptoms of neck pain when lowering the head, which should be diagnosed by examining the X-ray and CT of the cervical spine.