There are many neurons and nerve fiber tissues inside the cervical spinal cord. The function of the cervical spinal cord is mainly to control the trunk, limbs and joints, to innervate the movement of the trunk and limbs, as well as to actively collect sensations from the trunk and limbs. Therefore, cervical spinal cord injury can cause a stiff sensation in the lower lumbar spine, which is caused by the weakened ability to control sensation after cervical spinal cord injury. Lower back stiffness from cervical spinal cord injury should be taken seriously to avoid aggravation and possible paralysis. Cervical spinal cord injury lower back stiffness can be treated with physical therapy such as massage and hot compresses, while severe cases should be treated with surgery. Patients should have confidence in the treatment of sensory and motor disorders in the limbs caused by cervical spinal cord injury.