Cervical ankylosis refers to spasmodic contraction and pain in the neck muscles caused by stimulation of the nerves innervating the neck muscles, stiffness of the neck, restricted movement, impedance sensation when passively flexing the neck, and inability to keep the jaw close to the chest. Diagnosis: According to the different conditions, it is mainly divided into the following categories: 1. Neck stiffness Pain in the neck, shoulder and occipital area with corresponding pressure points and neck stiffness are the clinical characteristics of cervical cervical spondylosis. Cervical cervical spondylosis is extremely common in clinical practice and is the earliest form of cervical spondylosis, as well as an early manifestation common to all other types of cervical spondylosis. The symptoms are mainly in the neck, so it is also called the localized type. Because the symptoms are light, often do not pay enough attention to the disease, resulting in repeated attacks and aggravation of the disease, many patients who repeatedly fall into the pillow belong to this type. In the past, many people did not recognize this type. Therefore, it is less mentioned in the literature. Cervical cervical spondylosis, also known as ligamentous joint capsule cervical spondylosis, is often commonly referred to as “falling pillow” during acute attacks. This type of cervical spondylosis is mostly caused by inappropriate pillow height or improper sleeping posture during sleep, cervical spine rotation beyond its own movable limit, or due to a longer period of cervical spine bending, part of the intervertebral disc tissue gradually moved to the extension side, irritating the nerve root, and causing pain. “Pillow” also does not exclude non-cervical factors. For example, rheumatic myositis, strain on the collar and back muscles or sudden twisting of the neck due to cold in the cervical femur can also lead to “falling pillow”-like symptoms. This type is actually the early stage of each type of cervical spondylosis, mostly in the beginning of cervical vertebral degeneration, through the sinus vertebral nerve reflex and cause neck symptoms. However, if not handled properly, it is easy to develop into other more serious types. 2.Neck stiffness Neck stiffness refers to the phenomenon of neck muscle tension, swelling, stiffness, spasm (cramp), etc., and inflexible neck movement. It is commonly caused by fatigue and cervical spondylosis. Neck stiffness is a persistent excessive muscle contraction, which not only reduces the blood supply to the neck muscles, but also causes the accumulation of metabolites such as lactic acid, which causes ischemic pain in the muscles. Pain in the back of the head and headache in the top of the head may be tension headache caused by head or cervical spine pathology. Cervical spondylosis, also known as cervical spine syndrome, is a general term for cervical osteoarthritis, proliferative cervical spondylitis, cervical nerve root syndrome and cervical disc prolapse, and is a disorder based on degenerative pathological changes. It is a clinical syndrome with a series of dysfunctions mainly due to long-term cervical spine strain, osteophytes, or disc prolapse and ligament thickening, resulting in compression of the cervical spinal cord, nerve roots or vertebral artery. The cervical disc degeneration itself and its secondary series of pathological changes, such as vertebral joint instability, loosening; nucleus pulposus protrusion or prolapse; bone spur formation; ligamentous hypertrophy and secondary spinal stenosis, etc., stimulate or compress the adjacent nerve roots, spinal cord, vertebral artery and cervical sympathetic nerve and other tissues, and cause a variety of symptoms and signs of the syndrome. 3, neck stiffness, cervical movement is restricted, this symptom can be seen in the cervical rib syndrome. Cervical rib syndrome is a complex clinical syndrome caused by the compression of important vascular nerves in the thoracic outlet area, also known as cervicothoracic outlet syndrome, anterior oblique muscle syndrome, pectoralis minor syndrome, rib lock syndrome, excessive abduction syndrome, etc. It is a general term for a series of vascular and neurological symptoms of the upper extremity caused by the compression of the brachial plexus nerve and subclavian artery at the outlet of the upper thoracic outlet for some reasons. The main clinical manifestations are pain and numbness of the shoulder, arm and hand, or even muscle atrophy and weakness, bruising and coldness of the hand, and weakened radial artery pulsation. Based on the history of otitis media and signs of meningitis, lumbar puncture cerebrospinal fluid tests, the diagnosis is generally not difficult. In recent years, due to the widespread use of broad-spectrum antibiotics, the acute condition is mostly suppressed, the chemical changes in the cerebrospinal fluid are not significant, protein may be slightly increased, sugar and oxides may be within the normal range, and leukocytes are slightly increased, especially if improperly treated, it may evolve into focal or migratory meningitis, which can be easily confused with mild tuberculous meningitis or epidemic cerebrospinal meningitis.