Overview
A spinal cord injury is damage to the spinal cord in the neck or back, which can disrupt signals between the brain and the rest of the body. Depending on the level and severity, it can cause weakness, numbness, loss of coordination, and changes in bladder or bowel control. Pain, stiffness, and muscle spasms may develop as the nervous system heals and as secondary complications occur. Because spinal cord injuries can be life-altering and sometimes require urgent stabilization, prompt medical assessment is essential.
Symptoms
Symptoms often include weakness or paralysis in the arms and/or legs, reduced sensation such as numbness or tingling, and problems with balance and walking. Many people also experience neck or back pain, muscle tightness, and involuntary spasms that can worsen with fatigue or improper positioning. Some patients develop neuropathic pain, such as burning, shooting, or electric-shock sensations. Bowel or bladder changes may occur and can range from difficulty initiating urination to incontinence.
Causes
Spinal cord injury is most commonly caused by trauma, such as motor vehicle crashes, falls, sports injuries, or assaults, leading to compression, contusion, or transection of spinal cord tissue. Less commonly, it can be caused by non-traumatic conditions like severe spinal stenosis with cord compression, tumors, infections, or inflammatory diseases. The injury mechanism interrupts nerve pathways and can trigger ongoing inflammation and secondary damage around the initial trauma.
Risk Factors
Risk increases with activities or occupations that involve falls, high-impact collisions, or work at heights. Not using seatbelts, helmets, or protective gear, and driving while impaired can increase the chance of traumatic events. Older age and osteoporosis raise the risk of fractures from lower-energy falls. Some non-traumatic causes are more likely in people with certain cancers, infections, or inflammatory conditions, and with chronic spine degeneration that narrows the spinal canal.
Prevention
You can reduce risk by using seatbelts, wearing helmets and protective gear for high-risk sports, and improving fall prevention at home and work. Safe driving behaviors and avoiding impaired driving are important for preventing high-energy trauma. For people at risk of non-traumatic spinal cord compression, managing spine health through regular movement, strength training, and early evaluation of progressive numbness or weakness can help. Following clinician guidance for posture, ergonomics, and activity modification can also lower the chance of spinal injury.
How the Diagnosis Is Evaluated
Evaluation starts with a focused history of the event or onset, including when symptoms began and whether they are progressing. Clinicians perform a detailed neurologic exam to test strength, sensation, reflexes, and coordination, and they often use a standardized scoring system such as ISNCSCI/ASIA to document function. Imaging is used to identify the cause and level of injury, typically with CT in the acute setting and MRI to assess the spinal cord and soft tissues. Not every test is needed for every patient, but urgent assessment and imaging are common when neurologic deficits are present.
Nonsurgical Treatment Options
Nonsurgical care focuses on protecting the spine, preventing complications, and maximizing neurologic recovery and function. In many cases, early immobilization, careful positioning, and supportive care are critical while the injury is assessed. Pain and spasticity may be managed with medications and structured programs; physical therapy and occupational therapy help with mobility, transfers, gait training, and daily activities. Rehabilitation also addresses bowel and bladder routines, skin care and pressure injury prevention, and use of assistive devices such as braces, wheelchairs, or adaptive equipment. For persistent pain or muscle tightness, clinicians may consider targeted interventions such as trigger point injections or nerve blocks when appropriate for the pain pattern and exam findings.
When to Seek Medical Attention
Seek emergency care immediately after any significant fall, crash, or sports injury that could affect the neck or back, especially if there is new weakness, numbness, or trouble walking. Go urgently for rapidly worsening symptoms, severe or escalating pain, or any progressive neurologic changes. Prompt evaluation is also needed for bowel or bladder changes, numbness in the groin or saddle area, inability to sense or control urination, or signs of infection such as fever in the setting of recent injury or hospitalization.
Frequently Asked Questions
Yes, many people experience partial neurologic improvement during recovery and rehabilitation, and the amount of recovery varies by severity and timing of care.
Clinicians typically use a neurologic exam and imaging such as CT and MRI to identify the level and cause of injury.
Next Steps
If you suspect a spinal cord injury or have new weakness, numbness, or bowel or bladder changes after trauma, seek urgent medical evaluation right away. For ongoing symptoms, a specialist-led rehab plan can help protect function and guide the next steps in recovery and symptom control.