There are various manifestations of cervical spondylosis, and the most common ones are as follows. (A) neurogenic cervical spondylosis The herniated cervical intervertebral disc is biased to the side, and the posterior edge of the vertebral body, especially the hook vertebral joint hyperplasia, can protrude into the intervertebral foramen, which can compress the nerve roots and invade the lower cervical vertebrae more, so arm pain or finger numbness occurs, and it is easy to occur in low head workers over 30 years old. It is a more common type of cervical spondylosis. Symptoms: Firstly, neck and shoulder pain, soreness in the back of the neck behind the occiput, and radiating downward to the forearm and fingers according to the distribution of nerve roots. In mild cases, the pain is persistent and swollen, and in severe cases, it can be like a knife cut or a needle prick, and in some cases, there is an electric sensation when the skin is touched with allergy, and in some cases, it is numb like a spacer, and according to the nerve root compressed by the lesioned segment, there is motor and sensory impairment in certain areas. The history of the disease often starts with neck and shoulder pain and gradually worsens with repeated episodes, which progresses to radiating pain, and some attacks due to a single trauma, with limitation of neck movement and pain that worsens when coughing and stooling. Sometimes there is hand weakness, heaviness or unstable holding, etc. Consider whether there is spinal cord compression. (2) Spinal cord type cervical spondylosis is a symptom of spinal cord compression caused by cervical disc prolapse, which is common from 40 to 60 years old, and is often a multi-segmental lesion, because there is no nerve root type pain, so early diagnosis is rarely made. Some of them have a feeling of banding or weight-bearing in the chest or waist. In severe cases, there may be difficulty walking, urinary and fecal incontinence or urinary retention, or even tetraplegia and bedridden. Symptoms: Not necessarily neck and shoulder pain, no discomfort in the neck, but clumsy hand movements, small movements, such as threading needles, writing small letters. Gait instability, easy to fall, can not cross the barrier, early will not have sensory impairment, severe disease can appear hyperalgesia, but irregular, lack of area in the form of sheets or strips, can not be fixed by the level of sensory deficit lesion segment, according to the loss of sensory-motor clinical can appear: hemilateral type, half of the motor impairment heavy other half of the sensory impairment; central type, upper limb damage heavy lower limb damage light; cross type, left upper limb right lower limb damage In the crossed type, the damage to the right lower extremity of the left upper extremity is heavy while the damage to the left lower extremity of the right upper extremity is light. Myelopathy hand: when the spinal cord is severely damaged by compression, especially in the late stage, the patient’s interosseous muscle paralysis, so that the patient’s arm forward, palm down when the fingers are straight, the little finger slightly abducted, and in severe cases, the index finger ring finger can not be close to the middle finger, another symptom is the slow speed of finger clenching, clenching the fist less than 20 times in 10 seconds. (c) Sympathetic cervical spondylosis mostly occurs in combination with nerve root type and spinal cord type cervical spondylosis, with symptoms of sympathetic excitation or inhibition, such as eyelid weakness, blurred vision, pupil dilation, eye sockets distention and pain, tearing; headache, migraine, dizziness, occipital and neck pain; accelerated or slow heartbeat, precordial pain, increased blood pressure; cold extremities, decreased local temperature, pins and needles sensation in the receding cold extremities, followed by redness and pain, also There may be vasodilatation, redness, heat, pain, and sensory allergy in the fingers; there may also be excessive sweating or less sweating in one limb, tinnitus, deafness, nystagmus, and positive Romberg’s sign (unstable standing with eyes closed and toes together); sometimes pain at the trigeminal nerve outlet, pressure pain, greater occipital neuralgia, sublingual nerve dysfunction, etc. are seen. If such patients only have symptoms of sympathetic excitation or inhibition without symptoms and signs of nerve root type or spinal cord type cervical spondylosis cannot be easily diagnosed as sympathetic cervical spondylosis, first of all, brain, heart, eye and ear diseases of the five senses should be excluded. (C) Mixed cervical spondylosis When two or more kinds of compression exist at the same time, such as spinal cord type neurogenic type both exist at the same time, it can be called mixed type; mixed neurogenic type and vertebral artery type, it can also be called mixed type, there are also mixed type of spinal cord, nerve root and vertebral artery. (iv) Other cervical spondylosis Some scholars also classify: esophageal cervical spondylosis and cervical cervical spondylosis. However, according to the strict definition of cervical spondylosis, these two types can hardly be classified as cervical spondylosis. The vertebral artery type cervical spondylosis is still quite controversial.