Spinal shock is a temporary physiological response to acute spinal cord trauma characterized by complete loss of motor, sensory, and reflex function below the level of injury. This condition typically develops immediately or within hours of the traumatic event and represents the spinal cord's initial reaction to severe damage. During spinal shock, the injured person may experience flaccid paralysis, loss of bladder and bowel control, absence of reflexes, and inability to feel pain or temperature below the injury site.
The condition occurs when traumatic force—such as from a car accident, motorcycle crash, fall from height, or violent impact—damages the spinal cord through compression, contusion, laceration, or stretching. Common accident scenarios that cause spinal shock include high-speed collisions, head-on collisions, rollover accidents, pedestrian accidents, construction site falls, and sports injuries. The severity of spinal shock doesn't always correlate with the permanence of injury, which is why immediate medical evaluation and ongoing monitoring are critical.
Spinal shock typically lasts between 24 hours and six weeks, with most cases resolving within two to four weeks. As spinal shock resolves, reflexes gradually return, starting with the bulbocavernosus reflex and anal wink reflex. The return of these reflexes signals the end of spinal shock and allows medical professionals to more accurately assess the extent of permanent spinal cord damage. This transition period is crucial for both medical prognosis and legal claims, as the true nature of permanent injuries becomes clearer.