Cervical radiculitis is inflammation of a nerve root in the neck, causing pain, numbness, or weakness that radiates into the shoulder, arm, or hand. It develops when one of the spinal nerves exiting the cervical spine becomes compressed, chemically irritated, or both. Most cases resolve on their own within weeks to months, but the pain can be intense enough to disrupt sleep, work, and daily activities while it lasts.
What Causes Nerve Root Inflammation
The underlying cause depends largely on your age. In people in their 30s and 40s, a herniated disc is the most common culprit. The soft inner material of a spinal disc pushes outward and presses against a nearby nerve root. In people in their 60s and beyond, the problem is more often gradual narrowing of the bony openings where nerves exit the spine, driven by arthritis and bone spur formation.
Regardless of age, the mechanism involves more than simple pressure. Fragments of degenerated disc material and surrounding inflammatory cells release chemical irritants that amplify pain signaling and cause the nerve root to swell. This is why two people with identical-looking MRIs can have very different levels of pain: the chemical component matters as much as the physical compression. Over time, a combination of bone spur growth, disc height loss, and joint thickening can progressively shrink the space around the nerve, leading to a mix of mechanical pinching, inflammation, and restricted blood flow to the nerve itself.
How the Pain Feels and Where It Goes
The hallmark of cervical radiculitis is pain that travels from the neck into the arm, often accompanied by tingling, numbness, or muscle weakness. You might expect the pain to follow a neat, predictable path based on which nerve root is affected, but research published in Chiropractic & Osteopathy found that roughly 70% of cervical radiculopathy cases produce pain in patterns that don’t match the textbook nerve maps. Pain from the C6 nerve root, for example, was non-dermatomal in 65% of cases; C7 was similar at about 68%.
In practical terms, this means your pain might spread across your shoulder blade, down the outside of your arm, into your thumb, or into multiple fingers at once, and that variability is normal. Common patterns include neck stiffness with deep aching in the shoulder, sharp or burning pain shooting down the arm, and patches of numbness or a “pins and needles” sensation in the hand. Some people notice their grip strength dropping or find it harder to lift their arm overhead. Symptoms often worsen when you tilt or rotate your head toward the affected side.
How It’s Diagnosed
Diagnosis starts with a physical exam. One well-known clinical test, the Spurling maneuver, involves your provider tilting your head toward the painful side and gently pressing down. If this reproduces your arm pain, it’s a strong signal that a cervical nerve root is involved. The test is highly specific (93%), meaning a positive result reliably points to radiculopathy. But it only catches about 30% of confirmed cases, so a negative Spurling test doesn’t rule it out.
MRI is the go-to imaging study. It shows soft tissue detail that X-rays miss: disc herniations, nerve root swelling, and the degree of narrowing around each nerve exit point. On certain MRI sequences, inflamed nerve roots appear brighter and sometimes visibly thicker than normal. Your provider will match what the MRI shows to your symptoms and exam findings, since plenty of people have disc bulges on MRI without any pain at all.
Treatment Without Surgery
Conservative care is the first approach for nearly all cases, and with good reason. Most cervical radiculitis improves over weeks to months without surgery. The goal during that window is to control pain and keep you functional.
Anti-inflammatory medications help address both the pain and the chemical irritation driving it. Short courses of oral steroids are sometimes used for more intense flare-ups to bring swelling down quickly. Activity modification matters too: avoiding positions that compress the nerve (like looking up for prolonged periods or sleeping with your neck sharply angled) can make a noticeable difference.
Physical therapy plays a central role. A typical program includes hands-on techniques like spinal mobilization of the neck and upper back, nerve gliding exercises designed to help the irritated nerve move more freely through surrounding tissues, cervical traction (gentle pulling to open up the space around nerve roots), and strengthening exercises targeting the muscles that support the neck. Postural education is usually woven in, since forward-head posture can worsen nerve compression over time.
When pain persists despite several weeks of conservative care, a steroid injection delivered near the affected nerve root is a reasonable next step. In one study of 68 patients, 62% experienced relief from a single injection. A longer-term follow-up found that 76% eventually achieved complete resolution of arm pain, about a third needed additional injections, and only around 12% ultimately went on to surgery.
When Surgery Becomes Necessary
Surgery is reserved for two situations: persistent arm pain and numbness that haven’t responded to months of conservative treatment, or progressive neurological deficits like worsening muscle weakness. The most common procedure is anterior cervical discectomy and fusion, where the problematic disc is removed through a small incision in the front of the neck and the vertebrae above and below are fused together. For certain cases involving one or two levels with clear nerve compression from the side, a less invasive posterior approach can widen the nerve’s exit tunnel without fusion. Disc replacement, which preserves motion at the treated level, is another option for one- or two-level disease.
The decision to operate is guided by matching imaging findings to your specific symptoms, not by MRI alone. Surgery is most effective when there’s a clear structural cause that corresponds to exactly what you’re experiencing.
Red Flags That Signal Something More Serious
Cervical radiculitis affects a single nerve root. A more dangerous condition, cervical myelopathy, occurs when the spinal cord itself is compressed. The symptoms are distinct and worth knowing.
Watch for clumsiness in your hands (dropping things, struggling with buttons), difficulty with fine motor tasks like writing, an unsteady or wide-based walk, trouble with heel-to-toe walking, or numbness in both hands and feet simultaneously. Changes in bladder or bowel control, such as difficulty starting urination or a sense of urgency, can indicate severe cord compression. Any combination of these, particularly weakness or coordination problems in the legs alongside neck or arm symptoms, warrants urgent evaluation. Myelopathy can worsen if left untreated, and early intervention makes a significant difference in outcomes.