Neck pain is a very common clinical symptom, but it is necessary to realize that neck pain is not always caused by cervical spondylosis, the specific reasons are as follows: 1. 50% of migraine patients have combined neck pain, neck pain is even a precursor symptom of migraine, a very characteristic performance; 2. . In addition to this, many patients with secondary headache will also have neck pain, such as herpes zoster neuralgia will have neck pain; 3. Patients with temporomandibular joint disorder will also have posterior neck pain, and carotid artery entrapment will suddenly appear with severe neck pain accompanied by pupil narrowing; 4. A considerable number of medical diseases, such as anemia and subacute thyroiditis, can also cause neck pain. It is especially important to remind people that if there is neck pain, the doctor may recommend an electrocardiogram. Patients with atypical heart attacks may also present with pain in atypical areas, such as pain in the throat or pain in the back of the neck, and atypical clinical manifestations may suggest more dangerous diseases, which also require active examination.