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Overview

What Is a Spinal Cord Injury?

A spinal cord injury is damage to the spinal cord, the bundle of nerves that carries messages between the brain and the rest of the body. This damage can disrupt signals that control movement, sensation, breathing, and other body functions. A spinal cord injury can affect anyone, and its severity depends on where the injury occurs and whether it is complete or incomplete. Injury to the spinal cord is different from an injury to the surrounding vertebrae, although both can occur together.

Symptoms

Symptoms of Spinal Cord Injury

Symptoms may begin immediately after trauma or become more noticeable as swelling and other damage develop. They depend on the injury’s level and completeness. Paraplegia usually affects movement and sensation in the legs and lower body, while quadriplegia affects the arms, legs, trunk, and often other body functions. Symptoms can range from mild changes to major loss of function.

  • Weakness (reduced muscle strength)
  • Paralysis (loss of voluntary movement)
  • Numbness (reduced sensation)
  • Tingling or pins-and-needles sensations
  • Loss of balance or coordination
  • Difficulty breathing
  • Loss of bladder control
  • Loss of bowel control
  • Changes in sexual function

Related term

Spinal shock

Spinal shock is a temporary period of reduced reflexes and function that can occur after a severe spinal cord injury. Its duration and effects vary, and its presence does not guarantee that function will return.

How It Happens

How Spinal Cord Injury Happens

A traumatic spinal cord injury can result from a sudden impact, compression, stretching, bruising, or cutting of the spinal cord. The force may also break or dislocate vertebrae, which can press on or damage the spinal cord. In some cases, swelling or reduced blood flow adds to the injury.

TRAUMATIC

Vehicle crashes, falls, violence, and sports injuries can apply sudden force that damages the spinal cord or vertebrae.

NONTRAUMATIC

Tumors, infection, inflammation, or reduced blood flow can damage or compress the spinal cord without a sudden external injury.

A complete injury causes loss of motor and sensory function below the injury level. An incomplete injury preserves some movement, sensation, or both below that level. The distinction helps clinicians plan treatment and rehabilitation, but it does not predict one fixed outcome for every person.

Risk Factors

Risk Factors for Spinal Cord Injury

Risk factors increase the likelihood of experiencing a spinal injury, but they do not make one inevitable. Risk varies with age, environment, occupation, and activities. Some safety-related risks can be reduced, while other background factors cannot be changed.

  • Unsafe driving or riding increases the chance of a serious road injury.
  • Not using a seat belt or helmet removes important protection during a crash or fall.
  • Unaddressed fall hazards at home or work can increase injury risk.
  • High-risk sports can cause spinal injury, especially without appropriate training and equipment.
  • Workplace hazards may increase risk when safety procedures are not followed.
  • Alcohol or drug impairment can affect judgment, balance, and safe driving.
  • Violence can cause forceful injuries to the neck or back.
  • Older age may increase vulnerability to falls and serious injury.
  • Sex-related injury patterns differ across populations and activities.
  • Congenital spinal abnormalities may make the spine more vulnerable.
  • Pre-existing spinal disease can increase the risk of cord compression or damage.

Complications

Complications of Spinal Cord Injury

Complications depend on the injury level and completeness, mobility, breathing ability, and access to rehabilitation and preventive care. Regular follow-up can help identify problems early and support daily health needs after a spinal cord injury.

  • Pressure injuries can develop when prolonged pressure damages the skin.
  • Urinary tract problems may result from changes in bladder control or emptying.
  • Constipation can occur when nerve signals and movement in the bowel change.
  • Respiratory infections may be more likely when breathing muscles are weakened.
  • Blood clots can form when movement is reduced.
  • Muscle stiffness or spasms may affect comfort and movement.
  • Bone loss can increase the risk of fractures.
  • Chronic pain may develop below, at, or above the injury area.
  • Autonomic dysreflexia can cause a sudden, dangerous rise in blood pressure.
  • Depression or anxiety may occur while coping with physical and life changes.

Urgent complication

Autonomic dysreflexia

Autonomic dysreflexia is a potentially life-threatening blood-pressure reaction, especially in people with spinal cord injuries at or above the mid-chest level. A sudden severe headache, sweating, flushing, nasal congestion, or a slow heartbeat may be warning signs; seek urgent medical help.

Diagnosis

How Spinal Cord Injury Is Diagnosed

A suspected spinal cord injury is assessed urgently while the neck and spine are stabilized. Clinicians ask how the event happened and perform a detailed examination of strength, sensation, reflexes, and breathing. They also look for other injuries that may need immediate treatment.

  • A neurological examination checks movement, sensation, reflexes, and the level of nerve impairment.
  • X-rays can show some fractures or changes in the alignment of the spine.
  • Computed tomography (CT) provides detailed images of bones and may identify fractures or dislocations.
  • Magnetic resonance imaging (MRI) can show damage to the spinal cord, discs, ligaments, and soft tissues.
  • Breathing or bladder-function tests may be used when clinicians need more information about affected body systems.

Clinicians document the injury level and whether it is complete or incomplete. These findings help guide emergency treatment, rehabilitation, equipment needs, and discussions about prognosis.

Treatment & Management

Treatment and Management of Spinal Cord Injury

Emergency stabilization and acute hospital care

Early care includes immobilizing the spine, supporting the airway and breathing, and managing blood pressure and circulation. The medical team repeats neurological checks and treats associated injuries. Imaging and specialist assessment help determine whether additional procedures are needed.

Surgery, rehabilitation, and long-term management

Surgery may be needed to relieve pressure on the spinal cord, remove damaged tissue, or stabilize the spine. Rehabilitation can include physical and occupational therapy, assistive technology, and training for mobility and daily activities. Long-term care may address pain and spasticity, bladder and bowel function, respiratory health, skin protection, mental health, and regular follow-up.

Prevention

Preventing Spinal Cord Injury

  • Wear a seat belt every time you travel in a vehicle.
  • Use age-appropriate child restraints and install them correctly.
  • Wear a properly fitted helmet for cycling, motorcycling, and other activities where it is recommended.
  • Prevent falls by improving lighting, removing trip hazards, and using safety supports when needed.
  • Follow workplace safety procedures and use required protective equipment.
  • Use proper technique and appropriate equipment during sports and physical activities.
  • Never drive or operate a vehicle while impaired by alcohol or drugs.
  • Recognize and address violence risks with appropriate safety planning and support.

Recovery Timeline

Spinal Cord Injury Recovery Timeline

StageWhat may happen
First hours to daysStabilization, imaging, neurological monitoring, and treatment of urgent complications.
First weeksMedical recovery, prevention of complications, and planning for rehabilitation.
Weeks to monthsRehabilitation focused on movement, strength, daily activities, communication, and equipment.
Long termOngoing follow-up, prevention of complications, and adjustment to changing needs.

Some neurological recovery may occur early, but its timing and extent are unpredictable. Functional improvement and learning new ways to perform daily activities are not the same as complete healing of the spinal cord. Rehabilitation may support progress and independence even when neurological recovery is limited.

What affects recovery

Recovery is different for every person

Recovery is influenced by whether the injury is complete or incomplete, the injury level, age, overall health, complications, and access to specialized rehabilitation. Spinal shock may temporarily change reflexes and function, making early assessment difficult. A medical team can provide a more individualized outlook as the injury is monitored.

When Should You See a Doctor

When Should You Seek Medical Care?

Call emergency services

Possible spinal cord injury is an emergency

Call emergency services immediately after a significant injury involving neck or back pain, weakness, numbness, paralysis, trouble breathing, loss of bladder or bowel control, or altered alertness. Do not move the person unless there is immediate danger, because movement can worsen a spinal injury.

  • Contact a clinician promptly for new or worsening weakness or changes in sensation.
  • Contact a clinician for fever, drainage, redness, or other wound problems.
  • Seek prompt care for breathing changes.
  • Seek prompt care for new urinary symptoms.
  • Report severe or worsening pain.
  • Report skin breakdown or a new pressure injury.
  • Seek medical advice for leg swelling or pain that could indicate a blood clot.
  • Get urgent help for symptoms of autonomic dysreflexia, such as a sudden severe headache, sweating, flushing, or a rapid blood-pressure rise.

Branches

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Symptoms

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