Spinal cord cervical lesions are pathological changes of spinal cord compression. Clinical manifestations vary depending on the degree, location and extent of the lesioned spinal cord being invaded. Sensory disturbances are mostly irregular, numbness of the arm is common, but objectively superficial nociceptive disturbances do not necessarily correspond to the dermatomes innervated by the lesion, and deep sensation may be present in rare cases with thoracic or abdominal fasciculations, when they are often accompanied by enhanced abdominal wall reflexes. Hoffmann’s sign (Hoffmann’s sign) is mostly positive, and there may be a reverse radial reflex, i.e., tapping the brachioradialis muscle belly or biceps tendon to cause rapid flexion of the fingers, which is the same as the Hoffmann’s sign. Hoffmann’s sign is positive in the same sense, or appears earlier. A small number of high-grade spinal cord lesions may show upper motor neuron damage such as increased muscle tone and hyperactive tendon reflexes. In the lower extremities, the upper motor neuron pathway is mostly abnormal, showing varying degrees of increased muscle tone and decreased muscle strength, active and hyperactive knee reflexes and Achilles tendon reflexes, positive ankle clonus, patellar clonus, and Babinski’s sign. Increased muscle tone and hyperactive tendon reflexes lead to unstable walking, especially fast walking, easy falling, staggering gait, and spastic gait. Spinal cervical spondylosis can also cause difficulty in urination and defecation and sphincter dysfunction.