The causes of stiffness and pain in the cervical vertebrae include: bad habits that cause excessive muscle fatigue, osteoarthritis of the cervical vertebrae, and compression of the cervical spine nerves. 1. Bad life habits: keeping the head down for a long time, standing for a long time and sitting for a long time, the cervical spine is compressed for too long and with too much intensity. Muscle fatigue, these can cause cervical stiffness and even pain. When the symptoms are not serious, adequate rest and correction of habitual posture can avoid cervical spine problems. 2. Cervical osteoarthritis: Cervical osteoarthritis is a condition that occurs when the cervical vertebrae age, the cervical discs protrude, and the joints of the cervical vertebrae become worn out and damaged, resulting in localized pain symptoms. Patients may also experience dizziness and insomnia. 3. Cervical nerve compression: When cervical vertebrae osteophytes or cervical disc herniation, the vertebral arteries and cervical nerves will be backwardly compressed, and nerve compression will lead to edema of the nerve; nerve ischemia will result in local stiffness and even pain symptoms. Long-term compression, nerve function is seriously affected, the neck will appear numbness. Problems of the cervical spine can be subdivided into many types, such as sympathetic, spinal, radicular, vertebral artery, etc., according to the different causes of the disease in order to take targeted measures to deal with. Therefore, it is recommended to consult a doctor as soon as possible and follow the doctor’s instructions according to the results of specific tests.