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Rhomboids
Two flat muscles running downward and outward from the spine to the inner edge of the shoulder blade, retracting and steadying it.
Latin name: Musculi rhomboideus major et minor. In plain English, the straps that pull the shoulder blades together. It is filed here under shoulder and shoulder blade.
Reference information, not a diagnosis. Where a symptom is described below, it is there so you can describe your own more precisely to a clinician — not so you can name what you have.
Where it is
The rhomboids lie under the trapezius, running at a downward angle from the spine to the inner border of the shoulder blade. Because the fibres slope, pulling on them does two things at once: it drags the blade toward the spine and it tips the socket downward. That second action makes them the opposite number of serratus anterior and the lower trapezius, which rotate the socket upward.
Rhomboid minor is the narrow upper band and major the broader one below it; in many people the two are difficult to separate. Their nerve, the dorsal scapular, runs down through or behind the levator scapulae, which is one reason pain and tightness in that inner-corner region often involve both muscles.
| Feature | Detail |
|---|---|
| Origin | Rhomboid minor from the nuchal ligament and the spinous processes of C7-T1; rhomboid major from the spinous processes of T2-T5 |
| Insertion | Medial border of the scapula, minor at the level of the spine of the scapula and major below it |
| Nerve | Dorsal scapular nerve (C4-C5) |
| Main actions | Retraction of the shoulder blade toward the spine, downward rotation, and holding the medial border against the rib cage |
What it does
Every time you pull something toward your chest, the rhomboids fire to keep the shoulder blade from being dragged forward around the rib cage. They are working muscles for rowers, climbers and anyone who carries or hauls. They also work statically: holding a shoulder blade in place while the arm does something in front of the body is a rhomboid job as much as a trapezius one.
They are frequently blamed for the ache between the shoulder blades. Sometimes that is right, but the same area receives referred pain from the neck joints, from the thoracic spine and occasionally from internal structures, so an ache there is not proof of a rhomboid problem. What is reliably true is that the region tolerates static loading badly and movement well.
Exercises that load it
| Exercise | Category | Muscles the exercise library lists |
|---|---|---|
| Bent-over row | Strength | Mid-back, lats, biceps |
| Rowing machine | Cardio | Legs, back, arms, heart |
| Pull-ups | Strength | Lats, biceps, mid-back, grip |
| Farmer's carry | Strength | Grip, core, upper back, legs |
Rowing patterns are the direct load: any variant where the elbow travels behind the body and the shoulder blade is allowed to move rather than being clamped. Let the blade slide forward at the start of the rep and pull it back at the end — locking the shoulder blades together for the whole set trains a position, not a range. Carrying loads them isometrically, since the weight is trying to pull the blade forward and down the entire time.
How it is lengthened
Reach both arms forward and let the shoulder blades slide apart, tucking the chin and rounding the upper back — a protraction stretch. It feels good between the blades because it lengthens exactly what has been held short. That said, the rhomboids are more often weak and overworked than genuinely shortened, so treat the stretch as relief rather than as the fix.
When it goes wrong
| Problem | What it typically feels like | Usual setting |
|---|---|---|
| Interscapular ache | A nagging ache between the shoulder blade and the spine, worse at the end of a desk day | Sustained forward-reaching postures, driving, or a new laptop setup |
| Rhomboid strain | A sharp local pain on one side, worse pulling or reaching across the body | A sudden pull, a heavy awkward lift, or a big jump in rowing volume |
| Dorsal scapular nerve irritation | A deep burning ache at the inner border of the shoulder blade, sometimes with a subtly winged blade | Repetitive overhead or carrying work, often with neck involvement |
Pain between the shoulder blades that comes on with exertion, is accompanied by breathlessness, chest pressure, or sweating, is a medical emergency and has nothing to do with muscles. Get help immediately rather than stretching.
Nothing on this page is a treatment plan. If a problem is limiting what you do, is not improving, or is getting worse, the right next step is an assessment by a doctor or a physiotherapist who can examine you.
Sources: descriptive anatomy from Gray's Anatomy of the Human Body, 20th US edition (1918), which is in the public domain; Latin names follow Terminologia Anatomica, published by the Federative International Programme for Anatomical Terminology. Nerve root levels are the conventional ranges taught from those sources and vary between individuals and between textbooks. Exercise cross-links use the TempoLife exercise library. Checked 2026-09-06.
Frequently asked questions
Why do my rhomboids hurt from sitting?
Because holding the arms forward for hours keeps the shoulder blades protracted, so these muscles are lengthened and under low-level tension the whole time. The ache is a loading problem rather than damage, and it typically eases with position changes and movement.
Are the rhomboids the same as the mid-traps?
No, though they sit next to each other and both retract the shoulder blade. The middle trapezius fibres run horizontally and rotate the socket upward; the rhomboids run at a slope and rotate it downward.
Should I squeeze my shoulder blades together all day?
No. A held position is still a held position, and the rhomboids do not respond better to being clamped than to being used. Moving between positions is more useful than adopting one.
Nearby in this reference
Deltoid
The cap of the shoulder
Rotator cuff
The four small muscles that hold the shoulder in its socket
Trapezius
The big diamond across the upper back and neck
Serratus anterior
The finger-like muscle on the ribs that pins the shoulder blade down
Biceps brachii
The two-headed muscle at the front of the upper arm
Triceps brachii
The three-headed muscle at the back of the upper arm
All 34 body parts · Exercise library · Body map
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