Upper Arm Pain Between Shoulder and Elbow: Where It Comes From

Most upper arm pain between shoulder and elbow does not start where it hurts. The ache sits on the outside of the upper arm, over the deltoid, the rounded muscle that caps the shoulder. Yet when I ask someone to press on that spot, it is rarely tender. The trouble is higher up, in the shoulder joint. The arm is simply where the body reports it.

Doctors call this referred pain. The shoulder joint and the outer upper arm share their nerve supply, so an irritated shoulder is often felt a hand's width below it. That one fact explains why rubbing the sore spot rarely helps, while changing how you reach often does.

One pattern cannot wait. Arm pain that comes with chest pressure, breathlessness, sweating, nausea, or jaw pain can be a heart attack. This is true of the left arm and of either arm. Call emergency services at once, and do not wait to see if it settles. Everything else on this page is for pain that changes with how you move the arm.

Upper arm pain between shoulder and elbow, pattern by pattern

An ache on the outside of the upper arm, with no tender spot. This is the shoulder speaking. The usual source is the rotator cuff, the four small muscles that hold the ball of the shoulder in its shallow socket. Its neighbour is the bursa, a thin cushion of fluid between those muscles and the bone above. Both get pinched as the arm rises. So the ache bites when you reach up or behind, often most as the arm passes shoulder height. If the shoulder is also getting stiffer week by week, an early frozen shoulder is possible. Here the capsule, the sleeve of tissue around the joint, thickens and tightens. Frozen shoulder is not rare. StatPearls puts adhesive capsulitis, its clinical name, at as many as one person in twenty. The first movement to narrow is usually turning the arm outward (StatPearls, 2023). Our Feldypedia entry on frozen shoulder walks through its stages. For the cuff and bursa version, our gentle exercises for rotator cuff pain lesson is a soft place to begin.

A sore line down the front of the upper arm. Tenderness at the front of the shoulder that runs toward the elbow points to the biceps tendon. This cord ties the biceps to the shoulder and runs in a groove at the front of the upper arm bone. It complains when you lift with the palm up, carry shopping with a bent elbow, or turn a screwdriver. Press just below the front of the shoulder and you will often find the spot.

A muscle that aches when you squeeze it. After a day of painting a ceiling or a first week back in the garden, the upper arm can ache all over. This is a muscle asked to do more than it is used to. It is worst a day or two later, tender to press, and quieter within a week. It needs no clinician unless it came with a pop or a bulge.

Pain that travels down from the neck, with tingling. Sometimes the ache runs from the neck, over the top of the shoulder, and down the outer arm, with pins and needles. Then the source may be a nerve where it leaves the spine. Doctors call this cervical radiculopathy, a long name for a squeezed nerve in the neck. Turning or tipping the head often changes it, while the shoulder itself moves freely. Numbness or a weak grip with this pattern deserves a prompt look.

The everyday triggers

Most people can trace the ache to something they have done a hundred times without trouble. What changed is the dose.

Reaching up is the big one: the top shelf, hanging washing, a hairdryer. Reaching behind is the other: a bra strap, a back pocket, the seat belt. Both bring the ball of the shoulder up against the bone above it, with the cuff and bursa in between. Sleeping on the sore side presses on the joint all night. Carrying something heavy in one hand drags the ball down and asks the cuff to hold it there. A mouse held far from the body is a small reach that never ends.

Why the shoulder blade, ribs, and neck matter

For the hand to reach the top shelf, three things move together. The ball rolls in its socket. The shoulder blade turns and slides up around the back of the ribs. The ribs and spine lengthen a little, and the head stays free. When the shoulder blade is held still, the ball must travel much further in its socket than it likes. That is where the cuff and bursa get squeezed.

This is the part a Feldenkrais Method® lesson works with. Instead of strengthening or stretching the sore joint, it invites the parts around it to take up their share. One lesson I teach begins lying on the side, with the top arm resting on the ribs. You slide the shoulder forward toward the ceiling and back, a few centimetres, many times, slowly. The arm does nothing at all. After a while the shoulder blade often glides over the ribs more easily. When you sit up and reach for a cup, the reach begins further back, and the arm has less to do. Awareness Through Movement® lessons work this way: attention first, and the effort often spreads out on its own.

To work with the shoulder directly, our frozen shoulder stretches page does it the supported way, arm resting throughout.

Gentle things to notice

Nothing here asks the shoulder to work harder, and each one slots into an ordinary day.

Lower the reach. Move the mugs to a shelf at chest height for a week. Notice whether the ache is quieter when the elbow stays close to the ribs.

Let the shoulder blade go first. Reach across the table for something. Before the hand moves, let the shoulder blade slide forward a little. Does the reach feel lighter?

Find the source with a fingertip. Press gently along the outside of the upper arm. If nothing is tender there, the ache is probably borrowed from the shoulder.

Feldy is built around guided versions of this: short daily audio lessons, most of them lying down, none pushing into the sore range. Our guide to how to relieve shoulder and elbow pain carries the same idea along the whole arm.

All of this sits alongside clinical care. A physiotherapist can test the cuff, check the neck, and plan a slow build of loading that suits your stage. Yoga, Pilates, and tai chi are a different route, each with its own mechanism: held shapes, counted movements, or slow forms.

What to avoid while the arm settles

Sleeping on the sore side is the first thing to change. Repeated overhead reaching is the second: batch the high jobs, or bring them down. Carrying something heavy in one hand is the third. Beyond those, skip pushing a stretch into the sore spot, and skip long spells with the arm held out to the side. None of this is forever, only a few weeks of letting the joint be less busy.

When upper arm pain needs a clinician

Call emergency services if arm pain arrives with chest pressure, breathlessness, sweating, nausea, or jaw pain. Get a prompt assessment for sudden pain with a pop and a new bulge in the upper arm. The same goes for weakness or numbness, swelling or fever, and any pain that followed a fall.

Beyond those, if a few weeks of lighter use have changed nothing, book a review. Pain that wakes you every night, or an arm that will not lift, are reasons to book too. One visit usually settles whether this is the cuff or the neck, and the care differs.

Find where to start

If the ache has been with you for a month, the interesting question is what that shoulder blade has been doing. The Feldy program for a stiff shoulder helps you feel that difference, one short lesson a day.

Which movement method would suit an arm that aches above the elbow? Find out in the 60 second Movement Match quiz, which asks three things and suggests one method.

Common Questions about upper arm pain between shoulder and elbow (FAQ)

Is it safe to try gentle movement with upper arm pain between the shoulder and elbow, and who should hold off?

For the shoulder, tendon, and tired muscle patterns, yes. The experiments on this page stay inside the easy range and add no load. Hold off and get checked first if the pain came with chest symptoms, a pop and a bulge, a fall, swelling, fever, or numbness and weakness in the arm or hand.

What should I avoid with pain in the upper arm between the shoulder and elbow?

Three things make arm pain that starts in the shoulder louder: sleeping on the sore side, reaching overhead again and again, and carrying something heavy in one hand. Ease those first, before you change anything else. Also skip pushing a stretch into the sore spot, and skip long spells with the arm held out to the side, as with a mouse far from the body.

What is the best sleeping position for upper arm pain between the shoulder and elbow?

On your back, or on the other side with a pillow in front of you so the sore arm can rest on it. Both keep the shoulder from being squashed under your weight. If you keep waking on the sore side anyway, a pillow tucked behind your back makes rolling onto it harder. Many people find the ache is loudest at night, and this is the simplest change to make.

Is pain in the upper left arm between the shoulder and elbow a sign of a heart attack?

On its own, and when it changes with how you move the arm, it usually is not. It becomes an emergency when arm pain arrives with chest pressure, breathlessness, sweating, nausea, or pain in the jaw, in either arm. Then call emergency services straight away and do not wait to see if it passes. Women in particular can have a heart attack with arm, jaw, or back discomfort and very little chest pain.

How often should I try the noticing experiments for upper arm pain?

Whenever the moment arrives, which is many times a day. Each takes a few seconds, and there is nothing to count. Reaching for a cup, putting on a coat, and picking up a bag are all chances to feel whether the shoulder blade joins in. One short lying down lesson a day is plenty on top of that.

How long does upper arm pain between the shoulder and elbow take to ease?

A muscle ache after new effort usually settles within a week. Pain that starts in the rotator cuff or the bursa often eases over several weeks once the daily triggers drop, though it can take longer. A true frozen shoulder is slower and moves through stages over many months. If three or four weeks of easing off has changed nothing, that is the time to book a review.

How is this different from the rotator cuff exercises a physiotherapist gives?

A physiotherapist builds the strength and tolerance of the cuff with a planned program, progressed over weeks. That care sits alongside what is here. The experiments on this page work on something else: how much of each reach the shoulder blade, ribs, and neck take on, so the cuff has less to do in the first place. Yoga, Pilates, and tai chi are different again, working through held shapes or slow forms with their own mechanism.

When should I have pain in the upper arm between the shoulder and elbow looked at?

Straight away if it comes with chest pressure, breathlessness, sweating, nausea, or jaw pain, because that can be a heart attack. Promptly if there was a pop and a new bulge in the arm, a fall, swelling, fever, or weakness and numbness in the arm or hand. Otherwise, a few weeks with no change, pain that wakes you every night, or an arm that will not lift are all reasons to book. A clinician can usually tell a cuff problem from a neck problem in one visit, and each calls for its own kind of care.