What is shoulder arthritis?
Shoulder arthritis is cartilage loss in the glenohumeral or acromioclavicular joints, causing deep aching pain, reduced reach and night pain when lying on the affected side. Physio, corticosteroid injections and, if severe, shoulder replacement are options.
Last updated 2026-07-01. This is general information, not a substitute for personalised medical advice.
Frequently asked questions
What does shoulder arthritis feel like?
Most people describe a deep ache at the back of the shoulder that worsens when reaching overhead, behind the back, or lying on that side at night. Stiffness limits putting on coats and reaching seatbelts.
Is shoulder arthritis the same as a frozen shoulder?
No. Frozen shoulder (adhesive capsulitis) is inflammation of the joint capsule and usually resolves within 1–3 years. Shoulder arthritis is cartilage wear and is progressive — but both can cause similar early symptoms, so accurate diagnosis matters.
What is the best exercise for shoulder arthritis?
Pendulum swings, doorway stretches and gentle external rotation with a resistance band are the most evidence-supported exercises. They protect range of motion and rotator cuff strength without overloading the joint.
Should I get an injection in my shoulder?
Corticosteroid injections can give 6–12 weeks of meaningful pain relief and are useful to bridge a flare or to allow physiotherapy to progress. Most clinicians limit injections to 2–3 per year.
When is shoulder replacement needed?
Shoulder replacement is considered when night pain is severe, function is limited despite physiotherapy and injections, and X-rays confirm advanced joint changes. The reverse total shoulder replacement is the most common option in the UK.