Why cervical disease caused headache

Many of the elderly often after occipital pain, but also increases with age, and the pain is more and more frequently, after doctors for a medical examination, the majority of patients diagnosed as cervical spondylosis. Why cervical disease can also cause headaches? That the current clinical cervical disease caused major headaches is the following five reasons: (L) of the cervical spine disease involving neck muscles caused lasting spasm of the neck muscles contraction, resulting in muscle blood flow obstacles can be free from lactic acid, 5 - serotonin, such as bradykinin skin disease caused material headache. (2) cervical spondylosis direct stimulation, traction head oppression or sensitive organizations headache caused headaches. (3) to stimulate disease, oppression or injury first, second and three pairs of cervical nerve caused headaches, particularly for the re-occipital, but also through the medulla oblongata of the trigeminal nerve or spinal cord role of the reflection due to pain radiotherapy to the head. (4) lesions can stimulate or promote the oppression of the veins around the neck or other sympathetic Cong sympathetic to vertebral - basilar artery system or intracranial arterial systolic and diastolic obstacles arising from headache. (5) Promote vein type of cervical disease, due to lesions involving promote direct contacts to vertebral - basilar artery insufficiency and a headache.