The prognosis of cervical spinal cord injury is influenced by many factors, including acute and secondary injuries, as well as the timing and choice of surgical approach and the experience and operating skills of the surgeon. Therefore, the prognosis of spinal cord injury can only be predictively estimated. When the cervical spinal cord is traumatized, spinal shock occurs and spinal cord function is strongly inhibited, and reflexes can be gradually restored over time. At this point, neurological examination can often indicate the extent of spinal cord injury and prognosis. After the period of spinal shock, the order of reflex recovery is generally from low to high position. Stimulation of the plantar region of the foot to produce retraction is the first reflex to appear, and also the bulbocavernosus reflex and the torso reflex, as well as the anal contraction reflex, are recovered first. If one of the above-mentioned reflexes appears and motor and sensory functions are still in a state of complete loss, it indicates a complete spinal cord injury with a poor prognosis. If the patient loses sensation around the anus and the rectal sphincter loses random movements, it can be considered a complete injury, and if this continues for 24 hours, 99G of patients cannot recover. If there is sensation around the anus and the sphincter has control, it suggests incomplete injury. If the quadriplegia is delayed and is limp for a longer period of time, the spinal cord injury can be considered more complete. Conversely, if spasticity of the extensor muscles occurs early, this usually indicates that the injury is partial. A complete injury is indicated by the first appearance of spasticity in the flexors. On the other hand, reflex flexion of the limb followed by non-extension is mostly a complete injury, while reflex flexion and extension in place is a biphasic reflex, which mostly indicates incomplete injury and can be expected to have different degrees of recovery.