Spinal cord pain stems from anything that compresses, inflames, or damages the cord itself or the nerve roots branching off from it. The causes range from age-related wear on the spine, which affects roughly 24% of healthy adults to some degree, to rarer conditions like infections, tumors, and blood supply problems. Understanding which type of pain you’re dealing with helps clarify what’s actually happening inside your spine and what to expect next.
Compression vs. Nerve Root Pain
Pain related to the spinal cord falls into two broad categories, and they feel quite different. When the spinal cord itself is compressed or damaged, the resulting condition is called myelopathy. This can cause widespread symptoms: tingling or numbness in the hands and feet, clumsiness with fine motor tasks like buttoning a shirt, difficulty walking, and a feeling of heaviness or stiffness in the legs. The pain tends to be vague and hard to localize because the cord carries signals for the entire body below the point of compression.
Nerve root pain, called radiculopathy, happens when a single nerve gets pinched where it exits the spinal column. This produces a sharp, often shooting pain that follows a specific path, like down one arm or along one side of a leg. You’ll typically notice weakness, numbness, or reflex changes only in the area that nerve supplies. Sciatica is the most familiar example. Both problems can exist at the same time, especially when a herniated disc or bone spur is large enough to press on both the cord and a nearby nerve root.
Degenerative Changes in the Spine
The most common cause of spinal cord compression is gradual wear and tear on the spine, particularly in the neck. As discs lose water content and flatten with age, the space around the spinal cord narrows. Bone spurs form along the edges of vertebrae. A thick ligament running along the back of the spinal canal, called the ligamentum flavum, can thicken and fold inward. Facet joints enlarge. All of these changes shrink the canal the cord sits in.
What’s striking is how common this is. Asymptomatic spinal cord compression has an estimated prevalence of about 24% in the general population, and in people over 60 in North America and Europe, that number climbs as high as 60%. Most of these people never develop symptoms. Only about 10% of those with compression on imaging go on to develop the clinical signs of myelopathy. So a narrowed spinal canal on an MRI doesn’t automatically mean you’ll have problems, but it does mean less margin for error if a new disc herniation or injury occurs.
Traumatic Spinal Cord Injury
After a spinal cord injury from a fall, car accident, or other trauma, pain takes two distinct forms. Musculoskeletal pain is the more straightforward type. It occurs in areas where you still have normal sensation, feels dull and achy, worsens with movement, and is tender to the touch. About 59% of people with spinal cord injuries experience this kind of pain, often from overuse of the shoulders during wheelchair use or from the original fracture site.
Neuropathic pain is more complex. “At-level” pain shows up right at the injury site and within a few segments below it, often appearing within days to weeks. “Below-level” pain, which develops further down the body, typically has a later onset, sometimes months to a full year after the injury. It’s commonly described as burning, tingling, or electric, and it can significantly disrupt sleep and mood. This type of pain comes from the damaged nerve fibers themselves misfiring, not from any ongoing tissue injury.
Inflammation and Autoimmune Conditions
The spinal cord can become inflamed even without physical compression. Transverse myelitis is a condition where the immune system attacks a segment of the cord, causing a band-like area of pain, weakness, and numbness. In some people, this is the first sign of multiple sclerosis, a disease where immune cells strip away the protective coating on nerve fibers in the brain and spinal cord. Neuromyelitis optica spectrum disorder is another autoimmune condition that preferentially targets the spinal cord and optic nerves.
Viral infections can also trigger spinal cord inflammation. The list of possible culprits is long: herpes viruses (including the one that causes shingles), West Nile, Zika, influenza, Epstein-Barr, and others. Whether the virus directly invades the cord or the immune response to the infection causes collateral damage isn’t always clear. What is clear is that the inflammation can develop rapidly, sometimes over hours, and the severity varies enormously from mild numbness to complete paralysis below the affected level.
Spinal Cord Tumors
Tumors that affect the spinal cord come in two main varieties based on where they grow. Intramedullary tumors grow within the cord tissue itself. The most common type is an ependymoma, followed by astrocytomas (which arise from star-shaped support cells) and hemangioblastomas (which are made up of blood vessels). These tumors most often appear in the neck region of the spine.
Intradural-extramedullary tumors grow inside the protective sheath surrounding the cord but outside the cord tissue. Meningiomas, neurofibromas, and schwannomas fall into this category. Whether benign or malignant, any of these tumors can compress the cord, nerve roots, and nearby blood vessels as they grow. The resulting symptoms depend on size and location but commonly include pain, weakness, numbness, and changes in bladder or bowel control. Pain from spinal tumors often worsens at night or when lying down, which distinguishes it from most degenerative causes.
Blood Supply Problems
The spinal cord depends on a steady blood supply, and when that supply is interrupted, the result is a spinal cord infarction, essentially a stroke of the spinal cord. The onset is fast. Sharp or burning back pain appears suddenly, followed within minutes to hours by weakness or paralysis, loss of pain sensation, and inability to feel temperature changes below the affected area. The most common pattern, called anterior spinal artery syndrome, knocks out motor function and pain/temperature sensation while sometimes sparing the ability to feel vibration and position.
Spinal cord infarctions are rare compared to brain strokes, but they can occur after aortic surgery, severe drops in blood pressure, or blockages in the arteries feeding the cord. The aching pain that radiates down through the legs in the early stages can mimic a disc herniation, which sometimes delays the correct diagnosis.
Nutritional Deficiencies
Vitamin B12 plays a direct role in maintaining the protective coating around nerve fibers in the spinal cord. It’s a required ingredient for two enzymes that build and repair myelin, the insulating sheath that allows nerves to conduct signals efficiently. When B12 levels drop low enough, abnormal fatty acids get incorporated into the myelin, and the sheath begins to break down. This condition, called subacute combined degeneration, primarily affects the back and side columns of the spinal cord.
The symptoms creep in gradually: tingling and numbness in the feet, difficulty sensing where your limbs are in space, unsteady walking, and sometimes a tight, banding sensation around the trunk. Copper deficiency can produce a nearly identical picture. Both are reversible if caught early, but prolonged deficiency leads to permanent nerve fiber loss. People at highest risk include those with absorption problems (such as after gastric bypass surgery), strict vegans without supplementation, and heavy users of certain acid-blocking medications.
When Spinal Cord Pain Is an Emergency
Most spinal cord pain develops gradually, but certain patterns demand immediate attention. Cauda equina syndrome occurs when the bundle of nerves at the base of the spine gets severely compressed, usually by a large disc herniation. The hallmark signs are loss of bladder or bowel control, numbness in the groin and inner thigh area (sometimes called “saddle anesthesia”), and sexual dysfunction, sometimes with weakness in one or both legs. If decompressive surgery is delayed, the damage to bladder, bowel, and sexual function can become permanent. Once the bladder reaches the point of painless overflow incontinence, evidence suggests the outcome has largely already been determined, regardless of when surgery happens after that point.
Sudden onset of severe back pain with rapidly progressing weakness or numbness in both legs also warrants emergency evaluation, as this pattern can indicate spinal cord infarction, a rapidly expanding epidural bleed, or acute cord compression from a fracture or tumor. In these situations, hours matter.
How Spinal Cord Problems Are Identified
MRI is the primary tool for evaluating spinal cord pain. It can show compression, inflammation, tumors, and areas where the cord has been damaged. On certain MRI sequences, bright spots within the cord indicate areas of active swelling or demyelination. In conditions like multiple sclerosis, advanced MRI techniques can now detect subtle changes in nerve fiber integrity before the cord has visibly shrunk, potentially identifying damage at a stage where intervention could still prevent irreversible loss. Cord atrophy, or visible shrinkage on imaging, is one of the strongest predictors of disability progression, but by the time it’s detectable, significant nerve fiber loss has already occurred.
Blood tests for B12, copper, and inflammatory markers help identify metabolic and autoimmune causes. In some cases, a lumbar puncture is needed to check for infection or antibodies associated with conditions like neuromyelitis optica. The combination of where your symptoms are, how quickly they developed, and what the imaging shows usually points to a specific cause.