Paraplegia is a transverse injury to the spinal cord at the level of the second thoracic vertebrae and above, often resulting in loss of motor, sensory, and autonomic function below the level of injury. Paraplegia is a transverse spinal cord injury that results in motor and sensory dysfunction of both lower extremities. Paraplegia is a paraplegic spinal cord injury that occurs at a higher level, usually above the level of the second thoracic vertebra. Paraplegia is characterized by loss of motor function of both lower limbs, reduced or absent muscle tone and tendon reflexes during the spinal cord shock period after the injury, and hypertonicity and hyperreflexia during the recovery period; sensory dysfunction of both lower limbs, lumbar and abdominal areas, and part of the upper limbs, and is often accompanied by autonomic dysfunctions, such as urinary and fecal incontinence. Patients with paraplegia should be treated as soon as possible after the injury, and 6 hours after the injury is the key treatment period, which can be relieved by medication such as methylprednisone and surgical treatment.