Rhomboid & Trapezius Strain (Shoulder-Blade Pain)

Overview

The rhomboids are two flat muscles that connect the inner edge of each shoulder blade to the spine. The trapezius is the large, kite-shaped muscle that runs from the base of the skull across the tops of the shoulders and down to the mid-back. Together they hold the shoulder blades in place and support the weight of your head and arms, which means they work almost constantly while you sit, type or look at a phone.

When these muscles are overworked, they develop tender, tight spots often called knots or trigger points. The result is a nagging ache between the shoulder blades or across the tops of the shoulders, sometimes with a burning feeling and sometimes referring pain up into the neck or head. In Cantonese this is often simply called "shoulder pain" or "shoulder-blade pain", and it is one of the most common complaints we see in students and office workers.

A true strain, where muscle fibres are torn, is less common and usually follows a specific lift or awkward movement. Both overuse and strain respond well to treatment, and most people notice improvement within a few weeks once the cause is addressed.

Causes and risk factors

• Long hours typing, writing or using a mouse with the shoulders raised or rounded
• Looking down at a phone or tablet for extended periods
• Carrying a heavy bag on one shoulder, or a rucksack on one strap
• Stress and anxiety, which raise shoulder tension without you noticing
• Weak lower trapezius and shoulder-blade muscles with tight chest muscles
• A sudden increase in rowing, swimming, pull-ups or overhead lifting
• Sleeping with the arm overhead or on a pillow that pushes the shoulder forward

How we may be able to help

We assess which muscles are involved, how your shoulder blades move, and whether the neck or thoracic spine is contributing. Shoulder-blade pain can occasionally come from the neck rather than the muscle itself, so this step matters.

Treatment may include hands-on soft-tissue work for trigger points, using IASTM or cupping to ease the tight tissue, which many people find gives noticeable relief. We do not use dry needling over the ribcage because of the small risk to the lung beneath. Hands-on treatment of stiff neck or thoracic joints, including chiropractic manipulation where appropriate, may reduce the load on the muscles, and interferential therapy may help settle pain in a flare. We then build a programme of shoulder-blade strengthening and postural endurance exercises, and look at your desk, bag and phone habits.

What you can do at home

• Drop your shoulders and lengthen your neck whenever you notice them creeping up
• Do shoulder-blade squeezes and band pull-aparts, two or three sets a day
• Use a tennis ball against a wall to apply gentle pressure to tender spots for 30–60 seconds
• Switch to a rucksack worn on both shoulders, and lighten the load
• Apply heat for 15 minutes after a long day at a desk (after a sudden strain, use ice for the first couple of days instead)
• Build in short breathing or relaxation breaks if stress is part of the picture