The Spurling test is a hands-on clinical examination used to check whether neck pain is caused by a pinched spinal nerve, a condition called cervical radiculopathy. A clinician positions your head and neck in a specific way and presses down on the top of your skull; if this reproduces your pain or sends symptoms shooting into your arm, the test is considered positive. It is one of the most widely used bedside maneuvers for neck-related nerve problems, but the test is more nuanced than it first appears, with ongoing debate about exactly how to perform it, what counts as a positive result, and how much weight to give it when deciding on imaging or treatment.
What the Test Is Designed to Detect
Cervical radiculopathy happens when a nerve root exiting the spinal cord through a bony opening in the neck (the intervertebral foramen) gets compressed or irritated. The usual culprits are a herniated disc bulging into the nerve’s path or bony spurs from degenerative changes narrowing the opening. Symptoms typically include pain radiating from the neck into the shoulder, arm, or hand, along with possible numbness, tingling, or weakness in specific patterns depending on which nerve root is involved.
The Spurling test tries to temporarily reproduce that compression in a controlled way. By tilting and pressing on the head, the examiner shrinks the space around the nerve root. If the nerve is already irritated, this extra squeeze provokes familiar symptoms. Imaging studies have confirmed what is happening mechanically: when the Spurling maneuver is applied, the cross-sectional area of the foramen shrinks to roughly 70% of its normal size at every level of the cervical spine.1Spine. The Influence of Cervical Traction, Compression, and Spurling Test on Cervical Intervertebral Foramen Size That 30% reduction is enough to provoke symptoms when a nerve root is already compromised but usually not enough to cause problems in a healthy neck.
How the Test Is Performed
In its simplest form, you sit upright while the examiner tilts your head to one side and pushes downward on the crown of your skull. But the details vary considerably, and this is where things get complicated. The original description by Roy Spurling in the 1940s involved a fairly basic compression maneuver, but clinicians and textbooks have since described many variations that combine different head positions with that downward force.
The most common versions involve some combination of these neck positions before the examiner applies compression:
- Lateral flexion: tilting the ear toward the shoulder on the painful side
- Extension: looking upward or tilting the head backward
- Rotation: turning the head toward the painful side
A study examining which combination provokes the most reliable symptoms found that extension combined with lateral bending and axial compression produced the highest pain scores, with the most distally radiating pain on average. Adding rotation instead of lateral bending produced the strongest tingling and numbness sensations. These more aggressive combinations were also the least tolerable, occasionally forcing the examiner to stop the test entirely.2PubMed Central. What is the Best Way to Apply the Spurling Test for Cervical Radiculopathy? One imaging study that validated the foraminal narrowing used a combination of about 13 degrees of extension, 63 degrees of rotation, and 28 degrees of lateral flexion with roughly 7 kilograms of downward force.3Journal of Chiropractic Medicine. A Review of the Spurling Test from Health Science Textbooks
The practical problem is that clinicians don’t agree on which version to use. A survey of over 450 practitioners found that no single method of performing the test was preferred by more than 37% of respondents. The most popular approach, combining ipsilateral lateral flexion, rotation, and extension with compression, was only slightly ahead of a simpler version using just lateral flexion and compression, which 32% preferred.4PubMed Central. Spurling’s test – inconsistencies in clinical practice This means two different clinicians might perform the test differently on the same patient and potentially reach different conclusions.
Accuracy and What the Numbers Actually Mean
If you search for the Spurling test’s accuracy, you’ll find numbers that seem to contradict each other. That is partly because different studies use different reference standards and different versions of the maneuver. The broad consensus from systematic reviews is that the test has low to moderate sensitivity but high specificity.5PubMed Central. A systematic review of the diagnostic accuracy of provocative tests of the neck for diagnosing cervical radiculopathy
In practical terms, high specificity means that when the test is positive, it’s very likely the nerve root is genuinely compressed. A positive Spurling test gives you useful information. The catch is the lower sensitivity: a negative test doesn’t rule much out. You could have a real nerve problem and still pass the test without symptoms. One study comparing the test to MRI and electrodiagnostic findings reported sensitivity of 95% and specificity of 94%.6PubMed. The correlation between Spurling test and imaging studies in detecting cervical radiculopathy Another study focused on cervical disc herniation found sensitivity closer to 67% with specificity at 95% and overall diagnostic accuracy around 74%.7Genetics and Molecular Research. CORRELATION OF SPURLING TEST WITH MAGNETIC RESONANCE IMAGING FINDINGS IN PATIENTS WITH CERVICAL DISK HERNIATION
The wide range in sensitivity figures likely reflects the variation in how the test is performed and which patients are included. A study population enriched with severe radiculopathy cases will make the test appear more sensitive than a mixed population of people with general neck pain. Regardless, the consistent finding across studies is the high specificity. When the Spurling test does provoke radiating arm symptoms, clinicians can be reasonably confident something is compressing a nerve root.
What Counts as a “Positive” Result
Even the definition of a positive test is debated. The traditional criterion is that the maneuver must reproduce radicular symptoms extending distally, meaning pain, tingling, or numbness radiating past the shoulder and into the arm or hand. The logic is straightforward: local neck pain under compression can come from facet joints, muscles, or other structures that aren’t nerve roots, so the test is only meaningful for radiculopathy if symptoms travel down the arm in a nerve-distribution pattern.
In practice, though, many clinicians are more lenient. In the same survey of 452 practitioners, 67% said they would interpret the test as positive even if symptoms stayed proximal, meaning pain stayed in the neck or shoulder area without radiating into the arm.8PubMed Central. Spurling’s test – inconsistencies in clinical practice This is a meaningful discrepancy. A test considered positive by two-thirds of clinicians using a loose criterion would be considered negative by the remaining third using a strict criterion. For you as a patient, this means the conclusion drawn from the test depends partly on who performs it and how they define “positive.”
The strict criterion, requiring distal symptom reproduction, aligns better with the test’s purpose. Local neck pain during compression might indicate facet joint irritation, muscle strain, or other non-radicular problems. None of those are what the Spurling test was designed to detect. If your clinician says the Spurling test was positive but your symptoms stayed in the neck area, it’s worth asking whether additional testing like an MRI or nerve conduction study might help clarify what’s happening.
How It Compares to Other Bedside Tests
The Spurling test is rarely used in isolation. Clinicians usually combine it with other physical examination maneuvers and a neurological assessment. Each test brings different strengths.
The upper limb tension test (also called the upper limb neurodynamic test) works differently from the Spurling test. Instead of compressing the neck, it stretches the nerves of the arm by moving the shoulder, elbow, wrist, and fingers through specific positions. This test tends to have high sensitivity but lower specificity, essentially the opposite profile from Spurling’s.9PubMed Central. A systematic review of the diagnostic accuracy of provocative tests of the neck for diagnosing cervical radiculopathy A negative upper limb tension test makes radiculopathy less likely, but a positive one doesn’t confirm it with as much confidence because other conditions can provoke a positive result.
The cervical distraction test works by gently pulling upward on the head, essentially the opposite of what the Spurling test does. If traction relieves your arm symptoms, it suggests that compression in the neck is the source of the problem. The shoulder abduction test, where you place your hand on top of your head, can also relieve radicular symptoms by reducing tension on the nerve root. Both of these share the Spurling test’s pattern of low to moderate sensitivity with moderate to high specificity.
A standard neurological exam, checking muscle strength, skin sensation in specific patterns, and deep tendon reflexes, rounds out the picture. Evidence from a systematic review suggests that the reliability of these individual neurological findings is variable, as is the reliability of the Spurling test itself when comparing results between different examiners.10PubMed. Reliability and validity of clinical tests to assess the anatomical integrity of the cervical spine in adults with neck pain and its associated disorders This is why combining multiple tests matters: no single maneuver does the job alone.
Combining Tests Into a Clinical Prediction Rule
Researchers have tried to formalize what experienced clinicians do intuitively by bundling several examination findings into a cluster. The idea is that when multiple tests all point the same direction, diagnostic confidence increases dramatically compared to any single test alone.
One well-known cluster from 2003 combines the Spurling test, cervical distraction, the upper limb neurodynamic test, and restricted cervical rotation (less than 60 degrees toward the affected side). When all four findings are present, the probability of cervical radiculopathy with radicular pain is extremely high. An independent validation study confirmed this and also tested a newer three-test cluster that includes a modified shoulder abduction test, the Spurling arm pain test specifically, and positivity on at least two out of four upper limb neurodynamic variants. When all three of these newer tests were positive, the post-test probability reached 100% in the validation sample, identifying over a third of radiculopathy cases compared to about 18% with the original four-test rule.11PubMed Central. An independent validation of a clinical prediction rule for the diagnosis of cervical radiculopathy with radicular pain
These rules aren’t magic. The very high post-test probabilities apply only when every test in the cluster is positive, which doesn’t happen in most patients. But they highlight an important practical point: a positive Spurling test alongside consistent findings on other maneuvers carries far more weight than a positive Spurling test by itself. If your clinician performs several neck and arm tests and they all point toward a pinched nerve, the collective picture is quite convincing even without imaging.
When Imaging Still Matters
Given its high specificity, a convincingly positive Spurling test can sometimes be enough to start conservative treatment, such as physical therapy, anti-inflammatory medication, or activity modification, without immediately ordering an MRI. Many episodes of cervical radiculopathy improve on their own within weeks to months, and imaging findings in the neck often don’t correlate well with symptoms. Disc herniations and bony spurs show up on MRIs in plenty of people who have no symptoms at all.
Imaging becomes important when the clinical picture is ambiguous (the Spurling test is negative but symptoms are concerning), when there are red-flag signs like progressive weakness or loss of coordination in the hands, or when symptoms don’t improve after a reasonable trial of conservative care. It’s also necessary before any surgical decision. The Spurling test’s role is in triage: it helps clinicians decide how urgently and aggressively to investigate, not whether to skip investigation entirely.
Using the Spurling Test to Track Recovery After Surgery
The test doesn’t disappear from the picture once a diagnosis is established. Clinicians also use it to monitor how well a patient is recovering, particularly after neck surgery for a herniated disc or foraminal stenosis. A study following patients for two years after surgery for cervical radiculopathy found that the proportion of patients with a positive Spurling test dropped significantly over time in both the surgical group and a group receiving structured postoperative rehabilitation.12Scientific Reports. Neurological outcomes after surgery and postoperative rehabilitation for cervical radiculopathy due to disc disease
More interestingly, patients who still had a positive Spurling test at the one-year mark reported significantly higher disability scores than those whose test had turned negative. A persistent positive result was one of the strongest predictors of ongoing functional limitations, more so than some other neurological findings. This gives the test a second life as a prognostic tool: if the maneuver that used to bother you no longer reproduces your arm symptoms, that’s a concrete, testable sign that your nerve root is decompressed and healing.
Practical Tips If You’re Having the Test
If a clinician tells you they’re going to perform the Spurling test, there are a few things worth knowing. The maneuver can be uncomfortable, even for people without a nerve problem, because pressing down on a tilted head loads structures throughout the neck. A brief increase in local neck stiffness or soreness is common and doesn’t by itself mean anything is wrong. What the clinician is looking for is reproduction of your specific complaint, especially if symptoms travel into the arm.
Be precise about what you feel. There’s a meaningful difference between “that made my neck ache more” and “that sent a zap down into my ring finger.” The more specific you are about where and how symptoms radiate, the more useful the test result becomes. If you’ve noticed that certain arm positions or head turns reproduce your symptoms at home, mention those patterns beforehand, because they can help the examiner decide which version of the test to use and how to interpret the result.
You should also know that a negative Spurling test does not mean nothing is wrong. Recall that the test misses a meaningful fraction of real radiculopathy cases. If your symptoms are persistent or worsening, a negative test is a reason to keep investigating, not a reason to stop. Conversely, the same survey data that revealed inconsistency in practice also showed that practitioners themselves rated the test as having only moderate to low value for guiding treatment decisions.13PubMed Central. Spurling’s test – inconsistencies in clinical practice It is one piece of evidence in a broader clinical puzzle, not a standalone answer.
Conditions That Can Mimic a Positive Result
Because the Spurling maneuver loads several neck structures simultaneously, conditions other than nerve root compression can occasionally produce symptoms during the test. Facet joint arthropathy, where the small joints connecting adjacent vertebrae are inflamed or degenerated, can cause sharp local pain with compression and rotation. Severe cervical muscle spasm may also produce pain during the maneuver. In these cases, pain typically stays in the neck or upper trapezius region rather than radiating past the elbow, which is why the strict criterion of distal symptom reproduction matters.
Thoracic outlet syndrome, where nerves and blood vessels are compressed as they pass between structures near the collarbone, can cause arm pain and tingling that overlap with radiculopathy symptoms. The Spurling test might provoke or change these symptoms because altering the neck position also affects tension on the brachial plexus. Shoulder pathology, particularly rotator cuff problems or labral tears, can confuse the picture too, since patients sometimes have difficulty distinguishing pain originating in the shoulder from pain traveling through it from the neck.
This is another reason why experienced clinicians pair the Spurling test with other maneuvers and a careful history. Where the pain starts, where it travels, what aggravates and relieves it, whether numbness follows a specific nerve pattern: these details matter more than any single test result. Cervical radiculopathy has a relatively predictable anatomical signature, and the Spurling test is most valuable when its findings fit that broader picture rather than standing alone as the sole basis for diagnosis.