The rotator cuff is a group of four small muscles and their tendons that keep the ball of the shoulder centred in its socket and let you lift and rotate the arm. When they become overloaded or irritated, the result is the familiar pain with reaching overhead, lifting, throwing or lying on the shoulder at night. It’s one of the most common causes of shoulder pain in adults, and most cases settle with the right kind of exercise and advice.
Understanding rotator cuff injuries
Clinicians increasingly use the term rotator cuff related shoulder pain, an umbrella for cuff tendinopathy, partial tears and what used to be called subacromial impingement. It reflects the fact that pain usually comes from a tendon that’s been asked to do more than it’s currently conditioned for, rather than a bone pinching it.
Contributing factors include a sudden increase in overhead work or training, repetitive overhead activity, long periods of poor shoulder strength, and age-related changes in the tendon. Tendon changes and even tears can show up on scans of shoulders that are entirely pain-free, which is why symptoms and function matter more than the picture.
Symptoms we commonly see
- Pain on the outer shoulder or upper arm when lifting the arm, especially between about shoulder height and overhead
- Pain lying on the affected shoulder at night
- Weakness or a sense the arm is heavy when lifting
- Pain reaching behind your back or into a back seat
- A catching or clicking feeling, sometimes
- In some tears, a sudden onset after a fall or heavy lift, with weakness
Our evidence-based approach
The evidence here is worth being honest about. In a large UK trial of people with rotator cuff disorders, a single session of best-practice physiotherapy advice did about as well as a six-session progressive exercise program over 12 months, and a steroid injection added no long-term benefit. The takeaway is that clear advice and appropriate loading matter, and we tailor how much support you need rather than giving everyone the same plan. Our approach includes:
- Assessment of the shoulder, neck and upper back, to separate rotator cuff problems from a frozen shoulder, neck referral or other causes
- Education about scans, tears and what’s actually driving your pain, so you can move without fear
- Load management, so the shoulder keeps working at a level it tolerates while it settles
- Graded strengthening of the rotator cuff, shoulder blade and upper back, progressed as your shoulder allows
- Hands-on treatment or dry needling where they help you move and exercise more comfortably
- A graded return to overhead work, lifting, swimming, throwing or racquet sports
- Referral for imaging or a surgical opinion when the picture calls for it
See our shoulder pain page for other common shoulder problems and our frozen shoulder page if movement, rather than pain with lifting, is the main problem.
What to expect: recovery timeline
- Early or mild cases: often improve over several weeks once load is managed and strengthening begins
- Established tendon pain: typically needs two to three months of consistent loading for meaningful change
- Larger or long-standing problems: can take longer, with strength continuing to build beyond the point where pain settles
When to seek help urgently
Get assessed promptly if you can’t lift your arm after a fall or heavy lift, notice sudden weakness or a bulge in the upper arm, or have shoulder pain with fever, redness, swelling or feeling unwell. Chest pain, breathlessness or pain spreading down the left arm needs urgent medical attention.
References
- Lewis J. Rotator cuff related shoulder pain: assessment, management and uncertainties. Man Ther. 2016;23:57-68.
- Hopewell S, et al. Progressive exercise compared with best practice advice, with or without corticosteroid injection, for the treatment of patients with rotator cuff disorders (GRASP): a multicentre, pragmatic, 2 x 2 factorial, randomised controlled trial. Lancet. 2021;398(10298):416-428.
- Karjalainen T, et al. Surgery for rotator cuff tears. Cochrane Database Syst Rev. 2019.
- Desmeules F, et al. Rotator cuff tendinopathy diagnosis, nonsurgical medical care, and rehabilitation: a clinical practice guideline. J Orthop Sports Phys Ther. 2025;55(4):235-274.