The special examination of cervical spondylosis includes three aspects: First, the brachial plexus nerve pull test, which is mainly for cervical spondylosis of nerve root type. The examinee is usually put in a sitting position with the head tilted to one side, and the examiner pulls the other upper limb of the examinee so that the brachial plexus nerve will be in a pulling position. If there is more local hyperplasia, calcification or protrusion, or foraminal stenosis, it will stimulate the brachial plexus nerve and lead to radiating pain or numbness in one upper limb, which indicates a nerve root type cervical spondylosis. Second, for spinal cord type cervical spondylosis, it is called Hoffman test. When doing the test, the patient is also chosen to be in a sitting position, and the person being examined is kept as relaxed as possible. The examiner holds the distal end of the patient’s middle finger in his hand, keeping the wrist joint in dorsal extension and the rest of the fingers completely relaxed, and then the examiner flicks the nail of the middle finger of the person being examined with his thumb to show the contraction of the rest of the fingers, which reflects the compression of the spinal cord by structures such as the spinal canal or intervertebral disc. Third, the pressure top test, mainly for patients with stenosis of the intervertebral foramen. The patient is also placed in a sitting position and the examiner presses the top of the head with both palms of the hands. If there is numbness in the upper extremities, it also indicates that the intervertebral foramen is narrowed, so the nerve roots are stimulated.