A herniated 45th cervical vertebra, which is a kind of imaging description language, should refer to a herniated 45th cervical disc, that is, when a CT or MRI is done, the imaging doctor will give a descriptive diagnosis based on the herniation. The human cervical spine is divided into a total of 7 sections, from top to bottom, the 1st-7th cervical vertebrae respectively. There is a disc in the middle of each 2 vertebrae, and the disc will degenerate due to prolonged head bowing or strenuous exercise, and then protrude. A herniated 45th cervical vertebra, which is a herniated disc in the middle of the 4th and 5th cervical vertebrae, often compresses the nerves and causes radiating pain in one or both upper extremities. If the spinal cord is compressed posteriorly, complications of spinal cord injury such as dizziness, headache, weakness of both lower limbs, unsteadiness, and difficulty walking may also occur. In such cases, it is usually necessary to improve the cervical MRI as soon as possible, and surgery may be required if necessary.