You are pointing at your shoulder. The problem may be six inches higher.

IS IT YOUR NECK OR YOUR SHOULDER?

Arm pain that changes when you turn or tilt your neck, brings numbness or tingling, or travels below the elbow points at the neck. Pain with reaching, or with lying on it at night, points at the shoulder. In many people it is both. The neck and the shoulder refer pain (send it) into the same territory. They get imaged separately and are treated by different people. That is why this particular mistake costs patients a year.

Why are neck and shoulder pain so hard to tell apart?

The C5 and C6 nerve roots supply the deltoid and the lateral arm. The subacromial structures and the acromioclavicular joint refer into almost exactly the same area. A person who points to the outside of their upper arm has told you nothing that separates the two.

It gets worse. Both are common past forty, and both are frequently present at once. A systematic review of overlapping cervical and shoulder pathology found masquerading (one passing for the other) and concurrent disease common. It was common enough that finding one does not license you to stop looking.

How can you tell if pain is from your neck or your shoulder?

• Does moving the neck change it? Rotation and extension provoking the arm pain points at the neck. Reaching, lifting away from the body and lying on it at night point at the shoulder.
• Is there numbness or tingling? Shoulder pathology aches. It does not produce dermatomal numbness (numbness in the skin strip one nerve root supplies) or true weakness. Pins and needles in specific fingers is a nerve root.
• Does it wake you when you roll onto it? That is close to a shoulder signature.
• Where does it stop? Shoulder pain rarely travels below the elbow. Radicular pain frequently does.
• Passive versus active range. A shoulder that a clinician can move further than you can move it yourself is a shoulder problem. Restriction in both directions raises a different question.

What tests show whether pain comes from the neck or shoulder?

Spurling’s test is extension, rotation toward the side, and gentle compression. It is reasonably specific for a cervical root, so a positive test is meaningful. It is not sensitive, so a negative one does not clear the neck. A systematic review of physical tests for cervical radiculopathy is blunt about that asymmetry. That is the reason a normal examination does not end the conversation.

Shoulder testing has the mirror problem. The provocative tests overlap heavily with each other, and none is decisive alone. What resolves it is a cluster of findings that agree. Where they do not agree, a diagnostic injection does.

Can an MRI tell whether it is your neck or your shoulder?

Image a shoulder in anyone over fifty and you will find something. Image a neck and you will find degenerative change at three levels. Both reports will be accurate and neither establishes the source of pain.

The most common failure we see is a shoulder MRI ordered for arm pain, a partial cuff tear reported, and a year of shoulder treatment for a C6 radiculopathy. The reverse happens too. The imaging problem covers why in more detail.

When the examination does put the pain in the cuff, the news is usually good. Most of those tears are partial, and conservative care matches surgery for partial-thickness cuff tears, which are about twice as common as full-thickness ones. Trygonis and colleagues, pooling long-term outcomes in 2026, found that “Conservative treatment, primarily physiotherapy-based, demonstrated comparable outcomes to surgery in partial-thickness tears or low-demand individuals.” We treat those tears here with a guided injection to quiet the pain, PRP placed into the tendon where it has stalled, a progressive loading program, and the metabolic work that decides how well a tendon heals. We work to avoid surgery on them.

Can you have a neck problem and a shoulder problem at the same time?

Yes. In a meaningful share of people it is both. That is not a cop-out. It is a treatment plan. The useful question becomes which one is dominant now. That is answered by treating the dominant one and reassessing, rather than by arguing about the scan.

A diagnostic injection settles it faster than another opinion. Anesthetize the subacromial space: if the arm pain goes, the shoulder was driving it. If nothing changes, it was never the shoulder.

The order of treatment when it is both

Roughly a third of the people who come in with this question have findings in both. The useful move is not to argue about which is primary. It is to treat the dominant one and reassess at six weeks.

That sounds imprecise, and it is actually the most efficient path. Once the first is quiet, the second problem is almost always smaller than it appeared. And the reassessment costs one appointment rather than a second course of imaging.

Why this particular error costs a year

Because the two structures are owned by different specialties. A shoulder surgeon images a shoulder and finds a shoulder problem, because there is always a shoulder problem to find past fifty. A spine clinic images a neck and finds degenerative change, because there always is.

Neither is being careless. The system is arranged so that whoever you reach first determines which structure gets treated. The examination that would have settled it takes twenty minutes, and it is nobody’s job.

What to bring so this gets settled in one visit

The imaging itself rather than the report, and both sets if you have had the neck and the shoulder scanned. What has been tried, for how long, and what happened. And if you have had an injection anywhere, what it was and what it did — a subacromial injection that changed nothing is one of the most useful pieces of information you can arrive with.

Why the metabolic question comes up here too

Both structures are tendon and collagen. Both fail earlier and heal worse in the presence of insulin resistance. Diabetes is among the strongest predictors of cuff disease and of adhesive capsulitis (frozen shoulder). And the same physiology is working on the cervical structures at the same time. It is the reason two people with the same job and the same age do not get the same result.

What people ask when nobody can tell them which it is

My shoulder MRI showed a tear. Is that the answer?

Not on its own. Rotator cuff abnormalities are extremely common on imaging in people with no symptoms, so a reported tear is a finding rather than a diagnosis. Whether it is your pain source is a clinical question. Shoulder pain that starts in the neck.

Can a neck problem cause shoulder blade pain?

Yes, and it is one of the most common presentations. The lower cervical facet joints refer over the scapula, which is regularly treated as a shoulder or a muscle knot for months. Rotator cuff, or the neck?

Which should I get imaged first?

Neither, until someone has examined you. The examination determines which imaging is worth doing and how to read it, and ordering both produces two abnormal reports and no clarity. What a compressed root actually causes.

Who should I see?

Someone willing to examine both in the same appointment. That is the entire point of this page. The subacromial bursa.

Does arm pain below the elbow come from the neck?

Usually, yes. Shoulder pain rarely travels below the elbow, while pain from a pinched nerve root in the neck frequently does. Numbness or pins and needles in specific fingers also points to a nerve root, because shoulder problems ache but do not cause that kind of numbness or true weakness. Pain that changes when you turn or tilt your head points the same way.

Why does my shoulder hurt when I lie on it at night?

Pain that wakes you when you roll onto the arm is close to a signature of the shoulder itself. Pain with reaching or lifting the arm away from your body points the same way. If turning or tilting your neck changes the pain instead, or it comes with tingling in the hand, the neck moves up the list, and in many people both are involved.

Can an injection show whether the pain is from my shoulder?

Yes. A diagnostic injection settles it faster than another opinion. The space under the top of the shoulder is numbed, and then we watch the arm pain. If it goes away, the shoulder was driving it. If nothing changes, it was never the shoulder. A shoulder injection that already changed nothing is one of the most useful facts you can bring.

What should I bring to my appointment for neck or shoulder pain?

Bring the imaging itself rather than just the report, and both sets if your neck and your shoulder were each scanned. Write down what has been tried, for how long and what happened. If you have had an injection anywhere, note what it was and what it did. That lets both areas be examined and sorted out in a single visit.

Related reading

• Rotator cuff, or the neck?
• Subacromial bursa
• AC joint pain
• Cervical radiculopathy
• Why your MRI is normal
• When your hands are the problem
• Shoulder arthritis
• Biceps tendonitis