A cervical herniated disc is clinically known as a herniated cervical disc. The symptoms caused by a herniated cervical disc pressing posteriorly on a nerve root or the cervical spinal cord are called cervical disc herniation. Cervical disc herniation is mostly caused by acute injury or chronic strain. The cervical spine is a part of the body with a large range of motion and a large load, and is connected to the relatively fixed thoracic spine. In daily life and work, the cervical spine continuously receives pressure, wear and tear, and degenerative dehydration of the nucleus pulposus due to long-term weight-bearing, resulting in disc deformation. When subjected to cranial gravity, muscle pull or external injury, the fibrous ring ruptures and the nucleus pulposus expands outward through the fissure to compress the nerve spinal cord. Since the lower cervical spine is more mobile, cervical 5 and 6 as well as cervical 6 and 7 segments are most likely to occur. Its main manifestation is pain in the neck, accompanied by radiating pain and numbness and discomfort in the upper limbs. If the protrusion compresses the spinal cord, it can cause lower limb incomplete paralysis.