Frozen Shoulder vs Rotator Cuff Tear

Frozen shoulder and rotator cuff tears: key differences

Both conditions can cause shoulder pain and difficulty reaching overhead, dressing or sleeping on the affected side, but they involve different tissues. Frozen shoulder, also called adhesive capsulitis, affects the shoulder capsule. The capsule becomes painful and stiff, and movement is limited both when you move the arm yourself and when a clinician gently moves it for you.

A rotator cuff tear affects one or more tendons that help lift and rotate the arm. Tears may follow an injury or develop gradually with age and repeated loading. Pain and weakness are common, particularly when lifting the arm, while passive movement may be less restricted than active movement. Symptoms overlap, so a diagnosis should not be based on one sign alone.

What an assessment may include

A physiotherapy assessment usually considers how the symptoms began, night pain, previous injuries, daily activities, active and passive range of motion, strength and how the shoulder responds to specific movements. Imaging is not always required for frozen shoulder. Ultrasound or MRI may be considered when a rotator cuff tear or another soft-tissue injury is suspected, depending on the clinical findings and medical advice.

How treatment differs

Frozen shoulder management commonly focuses on pain control, maintaining comfortable movement and gradually restoring flexibility as irritability settles. For rotator cuff problems, rehabilitation may include education, activity modification and progressive exercises for shoulder strength and function. Not every rotator cuff tear needs immediate surgery; decisions depend on the cause, size of the tear, functional loss, health and personal goals.

The right exercise dose varies. Forcing a very painful and stiff shoulder can aggravate symptoms, while doing too little for too long may reduce confidence and capacity. A personalised plan can be adjusted as pain, movement and strength change. Seek prompt medical advice after a significant injury, sudden marked weakness or symptoms that are worsening rather than improving.

This information is general and does not replace an individual assessment. For further patient information, see the AAOS guide to frozen shoulder and the AAOS guide to rotator cuff tears.