A spinal cord injury (SCI) is an injury to the spinal cord resulting in a change, either temporary or permanent, in its normal motor, sensory, or autonomic function. Spinal cord injuries are described at various levels of incomplete, which can vary from having no effect to complete injury, a total loss of sensation and function. Depending on the location and severity of damage along the spinal cord, the symptoms can vary widely, from pain or numbness to paralysis to incontinence. The prognosis also ranges widely, from full recovery to permanent tetraplegia (also called quadriplegia) in injuries at the level of the neck, and paraplegia in lower injuries. Complications that can occur in the short and long term after injury include pressure sores, infections, muscle atrophy, and respiratory problems.