1, stroke: by incomplete statistics, more than 90% of stroke patients have cervical spondylosis, but many people do not pay attention to it, to the stroke is not known, especially many doctors do not understand; 2, stubborn insomnia, neurasthenia: by clinical observation more than 70% of people with this disease have cervical spondylosis occur. However, many patients and doctors just focus on the treatment of insomnia; 3, recurrent dizziness: mainly caused by the compression of the vertebral artery, if the work at high places, walking along the river, driving, machine operation suddenly fainted, it will bring very serious consequences; 4, serious memory; 5, stiff neck can not turn; 6, plant nerve dysfunction; 7, upper limb pain and weakness; 8, high paraplegia; 9, deafness .