Neck, shoulder and back pain may be caused by the following reasons: First, cervical spondylosis, when cervical spondylosis is neurogenic cervical spondylosis or cervical cervical spondylosis, pain in the neck, shoulders and back can occur, then the diagnosis can be made by cervical spine X-ray, nuclear magnetic examination, most patients can be relieved or cured after conservative treatment. Secondly, myofasciitis, when myofasciitis is serious, it can cause pain in the shoulder and inner scapula, and it can radiate to the ipsilateral upper limb and shoulder and neck, then it can cause weakness in the upper limb and pain in the shoulder and neck, especially at night when sleeping under pressure and when cold and tired, the pain is very obvious, then it should be diagnosed by examination and related tests to exclude other diseases. Third, lung tumor, when there is a tumor in the lung, the pain in the neck, shoulder and back can also be radiated, then CT examination of the lung should be performed for diagnosis and treatment.