Chest pain that occurs at the same time as shoulder pain is most likely due to cervical spine disease. Although the shoulder and chest are two different locations, but the simultaneous occurrence of pain, is likely to be due to localized nerve stimulation by inflammation or structural compression caused by the cervical spine nerves in the shoulder joint and the anterior thoracic, lateral thoracic, and posterior back are distributed, once suffering from cervical spine disease, such as cervical spondylosis, cervical herniation of intervertebral discs, etc., cervical spine nerve by cervical spine osteophytes or cervical intervertebral disc herniation of the compression stimulation, causing pain symptoms in the area of distribution of the nerve. This will cause pain in the area where the nerves are distributed. If you work or study with your head down for a long period of time, if your body tissues have degenerated at an older age, if your neck has been twisted or pulled, or if your shoulders and neck have been exposed to external stimuli such as cold or moisture, the structure of the cervical vertebrae may change or the nerves of the cervical vertebrae may be stimulated, resulting in pain in the thorax and the shoulders at the same time.