The Yergason test is a hands-on clinical maneuver used to evaluate pain and dysfunction in the long head of the biceps tendon at the shoulder. A clinician performs it by having you bend your elbow to 90 degrees, then resist as you try to rotate your forearm outward (supinate) while simultaneously rotating your arm externally. Pain or a snapping sensation in the front of the shoulder or along the bicipital groove suggests a problem with the biceps tendon or its surrounding structures. The test is one of the more specific shoulder provocative maneuvers available, but its sensitivity is low enough that a negative result cannot confidently rule out pathology on its own.
How the Test Is Performed
You sit or stand with your elbow flexed at a right angle and tucked against your side. Your forearm starts in a neutral position, thumb pointing upward. The examiner grips your wrist or hand and asks you to forcefully supinate your forearm (turn your palm upward) while simultaneously externally rotating your arm against resistance. The examiner’s other hand typically palpates the bicipital groove at the front of the shoulder during the maneuver.
A positive test is marked by pain localized to the bicipital groove, sometimes accompanied by a palpable or audible snap as the tendon shifts. Because the maneuver loads the long head of the biceps in its groove, it stresses the tendon against its bony channel, which is why discomfort there points toward biceps tendon inflammation, instability, or a tear. The test specifically activates the long head of the biceps to a greater degree than many other shoulder tests, producing a relatively higher proportion of biceps muscle engagement compared to surrounding musculature.1PubMed Central. Glenohumeral muscle activation during provocative tests designed to diagnose superior labrum anterior-posterior lesions
What the Numbers Say About Accuracy
The Yergason test’s defining characteristic is a trade-off between specificity and sensitivity. When compared against surgical findings in a study using arthroscopy as the gold standard, the test showed a sensitivity of about 43% and a specificity of 79% for detecting biceps pathology. That means it correctly identified fewer than half of the people who actually had a biceps problem, but when it did come back positive, it was right roughly four out of five times.2PubMed. Accuracy of the Speed’s and Yergason’s tests in detecting biceps pathology and SLAP lesions: comparison with arthroscopic findings A separate study using musculoskeletal ultrasound as the reference found even lower sensitivity at 32%, with specificity at 78%.3PubMed. A comparison of physical examinations with musculoskeletal ultrasound in the diagnosis of biceps long head tendinitis
In practical terms, this profile means the test is much better at confirming a suspicion than at catching every case. If the Yergason test hurts in the right spot, there is a meaningful chance something is wrong with the biceps tendon. But if it doesn’t hurt, you cannot breathe easy and assume the tendon is fine. A large surgical cohort study reinforced this pattern, finding the Yergason test was the most specific among several biceps-directed maneuvers, with a specificity of 83% and the highest positive likelihood ratio at 2.20.4Journal of Shoulder and Elbow Surgery. Diagnostic accuracy of clinical tests directed to the long head of biceps tendon in a surgical population: a combination of old and new tests In that same study, the upper cut test was the most sensitive option. This complementary relationship is exactly why clinicians rarely rely on a single test.
Yergason Test Versus Speed’s Test
Speed’s test is the other classic biceps tendon maneuver, and the two are often mentioned together. For Speed’s, you hold your arm out in front of you with the elbow straight and the palm facing up, then resist as the examiner pushes your arm downward. It loads the biceps differently, stressing the tendon through shoulder flexion rather than forearm supination.
Head-to-head, the Yergason test consistently comes out more specific but roughly comparable in sensitivity. The arthroscopy-referenced study mentioned above found Speed’s test had a sensitivity of 32% and specificity of 75%, compared with the Yergason’s 43% and 79%.5PubMed. Accuracy of the Speed’s and Yergason’s tests in detecting biceps pathology and SLAP lesions: comparison with arthroscopic findings Likelihood ratios told the same story: Yergason’s positive likelihood ratio was 2.05, meaning a positive result roughly doubled the odds of true pathology, while Speed’s positive likelihood ratio was only 1.28, barely shifting the probability at all. In other words, a positive Speed’s test barely changes what a clinician should think about your diagnosis, whereas a positive Yergason’s test at least nudges the probability in a meaningful direction.
Neither test alone is powerful enough to clinch a diagnosis, which is why both are typically performed together along with palpation of the bicipital groove. If both tests provoke pain in the same spot, the clinician gains more confidence. If neither does, the biceps tendon drops lower on the list of suspects.
The SLAP Lesion Question
Because the long head of the biceps tendon anchors into the superior labrum of the shoulder socket, the Yergason test is sometimes discussed as a tool for detecting SLAP tears (superior labrum anterior to posterior). The evidence here is discouraging. One study that evaluated seven different provocative tests against arthroscopic findings found that none of the individual tests, including the Yergason, were statistically valid for specific detection of a SLAP lesion.6PubMed. Clinical testing for tears of the glenoid labrum Even combining the O’Brien test, Jobe relocation test, and apprehension test into a cluster only achieved 72% sensitivity and 73% specificity for labral tears generally, and performed worse for SLAP tears specifically.
A systematic review and meta-analysis that pooled data from multiple studies on SLAP-directed physical exams confirmed the Yergason test’s role as a specificity contributor rather than a stand-alone diagnostic tool. When tests were combined in pairs, the Yergason test paired with the anterior slide test formed the most specific two-test combination, in both parallel and series testing strategies.7PubMed. Physical Examination Maneuvers for SLAP Lesions: A Systematic Review and Meta-analysis of Individual and Combinations of Maneuvers For sensitivity, the best pairing was the O’Brien and crank test combination. The pattern is consistent: the Yergason test’s value in the SLAP context is about ruling pathology in when positive, not about screening for it broadly.
Why Clinicians Combine Tests
No single shoulder test has both the sensitivity and specificity to stand on its own, which is why clinical guidelines generally recommend using clusters. A systematic review proposing an evidence-based shoulder examination algorithm found that 15 of 26 commonly used special tests met proposed threshold parameters for clinical utility. The algorithm organized tests into clusters targeting specific pathologies, so that the weaknesses of any one test could be offset by the strengths of another.8PubMed Central. A Proposed Evidence-Based Shoulder Special Testing Examination Algorithm: Clinical Utility Based on a Systematic Review of the Literature Three pathological shoulder conditions in that review did not achieve the proposed diagnostic thresholds with any available tests, highlighting a real limitation of hands-on examination for certain shoulder problems.
Within this framework, the Yergason test earns its place as a high-specificity anchor. A clinician might start with a more sensitive test like the upper cut test or Speed’s test to cast a wide net, then use the Yergason to narrow down the diagnosis. When a patient has anterior shoulder pain and tests like the upper cut provoke symptoms, a positive Yergason can help pinpoint the biceps tendon as the source rather than, say, the rotator cuff or the labrum alone.
An Unexpected Connection to Subacromial Problems
One finding that surprises people is that the Yergason test has shown diagnostic relevance beyond isolated biceps pathology. A meta-analysis examining physical examination tests for subacromial bursitis and rotator cuff tears found that the Yergason test had the highest diagnostic odds ratio among four tests that reached statistical significance for subacromial impingement syndrome, with a diagnostic odds ratio of 4.71.9PubMed Central. Evidence-based approach to the shoulder examination for subacromial bursitis and rotator cuff tears: a systematic review and meta-analysis This seems counterintuitive for a test designed to stress the biceps tendon, but it makes anatomical sense. The long head of the biceps runs through the subacromial space, and inflammation or impingement in that area can irritate the tendon where it travels. A patient with subacromial bursitis may experience pain during the Yergason maneuver not because the biceps tendon itself is damaged, but because the surrounding structures are inflamed and the test’s loading pattern compresses that space.
This cross-reactivity is both useful and tricky. It means the test can flag problems in the general anterior shoulder region that go beyond pure biceps tendinopathy, which adds value in a broad clinical workup. But it also means a positive Yergason test alone cannot pinpoint whether the pain is coming from the tendon itself, the surrounding bursa, or a combination of both. That ambiguity is another reason imaging often follows a clinical exam.
When Imaging Enters the Picture
Given the modest sensitivity of the Yergason test and its peers, clinicians often turn to MRI or ultrasound for a clearer look. The sensitivity limitations of physical examination for the biceps tendon are well recognized in the literature.10BMC Musculoskeletal Disorders. Accuracy of MRI in diagnosing intra-articular pathology of the long head of the biceps tendon: results with a large cohort of patients Ultrasound can visualize the tendon in real time as it moves through the groove, catching subluxation or tears that hands-on tests might miss. MRI provides a more comprehensive picture that includes the labrum, rotator cuff, and surrounding soft tissues.
For patients, the practical takeaway is that a negative Yergason test at a clinic visit does not necessarily mean the shoulder is fine. If symptoms persist, especially pain in the front of the shoulder that worsens with overhead activities or lifting, imaging may still be warranted. Conversely, a positive Yergason test in the right clinical context can give a clinician enough confidence to start conservative treatment like physical therapy or a corticosteroid injection without immediately ordering expensive imaging.
Reliability Between Examiners
A test’s accuracy matters, but so does whether two different clinicians performing it on the same patient would agree on the result. Data from a study comparing in-person and videoconference assessments at a tertiary shoulder center found that the Yergason test had high agreement between examiners. The percentage agreement and prevalence-adjusted values were high, and in the interexaminer comparison, the Yergason test achieved full agreement across assessors.11JSES International. Agreement on clinical examination and management between virtual videoconferencing and in-person assessment in a tertiary shoulder center The study noted that the low prevalence of positive biceps findings in their sample affected kappa statistics, which can appear artificially low when a condition is rare even if clinicians nearly always agree. The percentage agreement and adjusted kappa values were reassuring.
This reliability finding matters because it means the Yergason test produces fairly consistent results regardless of who performs it, at least among trained clinicians in a specialized setting. The maneuver itself is straightforward and does not require subtle force application or unusual patient positioning, which likely contributes to that consistency.
Common Misunderstandings About Positive and Negative Results
The biggest misconception patients walk away with is treating any single test as a definitive answer. A positive Yergason test does not mean you definitely have a biceps tendon tear, and a negative one does not mean the tendon is definitely healthy. The test shifts probabilities. With a positive likelihood ratio around 2.0, a positive result roughly doubles the pre-test odds of biceps pathology, which is meaningful but far from diagnostic certainty.12PubMed. Accuracy of the Speed’s and Yergason’s tests in detecting biceps pathology and SLAP lesions: comparison with arthroscopic findings
Another common misunderstanding is assuming that pain during the test always comes from the biceps. As the subacromial bursitis data showed, neighboring structures can generate pain during the same maneuver. A skilled clinician pays attention not just to whether the test is positive, but to where the pain is felt, what quality it has, and how it fits with the rest of the examination. Reproduction of the patient’s specific familiar pain pattern carries more weight than generic discomfort.
Finally, some patients (and even some clinicians) confuse the Yergason test with the Speed’s test or use the names interchangeably. The two maneuvers load the biceps through entirely different mechanisms. Mixing them up can lead to erroneous documentation or misinterpretation of findings, which is why being clear about which test was performed and what it showed is important in clinical notes and in communication with patients.
What Physical Therapy Looks Like After a Positive Result
If the Yergason test and the overall clinical picture point toward biceps tendinopathy, conservative management is usually the first step. This typically involves activity modification to reduce overhead and heavy-lifting demands, along with a structured rehabilitation program. Early-phase rehab focuses on calming the inflammation with relative rest, ice, and possibly anti-inflammatory medication or a corticosteroid injection near the bicipital groove. Once pain settles, progressive loading exercises for the biceps and rotator cuff are introduced.
Eccentric exercises for the biceps, where the muscle lengthens under load, are a common component because tendon pathology often responds better to controlled loading than to complete rest. Rotator cuff strengthening matters because the rotator cuff muscles help control humeral head position, and poor rotator cuff function can increase stress on the biceps tendon as it traverses the shoulder joint. Scapular stabilization exercises are often included as well, since how the shoulder blade moves affects the entire kinetic chain of the shoulder.
Surgery becomes a consideration when conservative treatment fails over several months, or when imaging reveals a significant tear or instability of the tendon. Procedures range from biceps tenotomy, where the tendon is simply released from its attachment, to biceps tenodesis, where the tendon is reattached at a new location on the humerus. Both procedures relieve the pain source, and the choice between them depends on factors like the patient’s age, activity level, and cosmetic preference, since tenotomy can produce a visible bulge in the upper arm as the biceps muscle belly migrates downward.