Muscle guide · Back

Rhomboids

Also called rhomboid major and minor, muscle between the shoulder blades

The rhomboids are two flat muscles under the trapezius, between the spine and the inner edge of each shoulder blade: the smaller rhomboid minor at the base of the neck and the rhomboid major below it.

They squeeze the shoulder blades together and, with the serratus anterior, hold them flat against the ribs; pulling, throwing and overhead movements all lean on them.

6 exercises1 stretches7 with 3D demos4 sourcesUpdated 17 October 2026

Where the rhomboids is and what it does

Shaded: the back area. It marks the region, not the exact outline of the rhomboids.
What it does
  • Squeeze the shoulder blades together: the end of a row.Scapular retraction
  • Help lift the shoulder blade and turn it downward.Scapular elevation and downward rotation
  • Hold the shoulder blade against the rib cage, with the serratus anterior.Scapular stabilisation
Nerve supply
Dorsal scapular nerve (C5, with C4 in some sources).

Sources 1, 2

The parts of the rhomboids

PartStarts atAttaches toWhat it does
Rhomboid minorBase of the neck (C7 and T1)Inner edge of the shoulder blade, level with its ridgeSqueezes the shoulder blade toward the spine
Rhomboid majorUpper back spine (T2 to T5)Inner edge of the shoulder blade, below the minorSqueezes the shoulder blade toward the spine and turns it down

Sources 1, 2

Exercises for the rhomboids

Rows were part of a scapular programme proposed from EMG of eight shoulder-blade muscles including the rhomboids. No study has measured which exercises work it hardest; these load its actions.

Stretches for the rhomboids

Reaching across the body draws the shoulder blade forward, the opposite of their action.

Problems linked to the rhomboids

Dorsal scapular nerve trouble

Entrapment or injury of their nerve, sometimes in overhead sports, causes aching along the inner edge of the shoulder blade, odd shoulder movement and a subtle winging. It is often missed and is usually treated without surgery.

Source 1

Routines that train it

Questions people ask

What do the rhomboids do?

They squeeze the shoulder blades together, help lift and turn them, and hold them flat against the ribs.

What exercises work the rhomboids?

Rows and reverse flys, which pull the shoulder blades together against resistance.

Where are the rhomboids?

Under the trapezius, between the spine and the inner edge of each shoulder blade.

Muscles it works with

Sources

  1. StatPearls · Anatomy, Back: Rhomboid Muscles (2023)
  2. StatPearls · Anatomy, Thorax: Serratus Anterior Muscles (2024)
  3. Moseley 1992 · Muscle activity of the shoulder-blade muscles in rehabilitation exercises (Am J Sports Med, abstract)
  4. Cools 2007 · Exercises that favour the middle and lower trapezius (Am J Sports Med, abstract)

Anatomy and movement education, not a diagnosis or treatment plan. If you have pain that follows an injury, is severe or getting worse, or comes with numbness, weakness or swelling, get it assessed. Health disclaimer.