How long does frozen shoulder last?

Longer than most people want to hear. The classic teaching is 1 to 3 years through freezing, frozen, and thawing phases, but long-term data pushes that timeline out. Wong and colleagues (Physiotherapy 2017) systematically reviewed the natural history and found roughly 40% of patients still had measurable ongoing symptoms, mostly mild, well beyond the usual quoted recovery window. Hand and colleagues (JSES 2008) followed patients on average 4.4 years and found 41% reported some ongoing symptoms, though most were mild. Physiotherapy matched to your phase can shorten the course and improve how much function you recover, but I am careful not to promise a quick fix.

Will my shoulder ever move normally again?

Most people regain enough range for daily life, but returning to exactly the motion you had before is not certain. Hand and colleagues (JSES 2008) followed patients for an average of more than four years and found 59% had normal or near-normal shoulders while 41% reported some ongoing symptoms, most of which were mild. My functional targets are pain-free sleep, full overhead reach for daily tasks, and the ability to dress and groom without compensation. Getting the last 10 degrees of end-range rotation back can take many months of consistent work.

Do cortisone injections help frozen shoulder?

The evidence supports them for short-term pain relief, particularly in the painful freezing phase. Cochrane reviews and multiple randomised trials show that intra-articular corticosteroid injection reduces pain and improves function more quickly than physiotherapy alone in the first 6 to 12 weeks. After that window, differences between groups narrow and long-term outcomes look similar. The best results I see are when an injection calms the pain enough for someone to actually tolerate the mobility work. Benefits beyond 6 months are less certain, and the decision is about timing and access, not a permanent fix.

Why does my shoulder hurt so much at night?

Night pain is one of the most recognisable features of frozen shoulder and it has two main drivers. The inflamed capsule becomes more sensitised when you lie still and blood flow pools in the tissues, and any roll onto the affected side directly compresses an already irritated joint. I usually coach patients to sleep on the unaffected side with pillows propping the sore arm forward, or on their back with a small towel roll behind the shoulder blade. Night pain tends to ease as the condition moves out of the freezing phase.

Do I need surgery for frozen shoulder?

For most people, no. The UK FROST trial (Rangan et al., Lancet 2020) compared early structured physiotherapy, manipulation under anaesthesia, and arthroscopic capsular release in over 500 patients. At 12 months, none of the three was clinically superior on shoulder pain and function, and capsular release carried the highest complication rate. Physiotherapy is a reasonable first-line option, and I reserve surgical referral conversations for people who have genuinely plateaued after 6 to 9 months of well-delivered conservative care and still cannot meet their daily needs. Surgery carries its own risks and rehabilitation burden.

Can I prevent frozen shoulder coming back?

Recurrence in the same shoulder is uncommon, which is reassuring. The other shoulder becomes involved in roughly 5 to 34% of cases over several years in observational follow-up, with higher risk if you have diabetes or thyroid disease. There is no proven prevention protocol. The practical steps are keeping both shoulders moving through full range regularly, managing underlying metabolic conditions, and addressing any shoulder pain early rather than guarding it for weeks.

Should I push through the pain when stretching?

Not in the freezing phase. When the capsule is actively inflamed, aggressive end-range stretching tends to flare symptoms, disturb sleep, and stall progress. I use a simple traffic-light rule: stay in the amber zone of tolerable stretch, avoid the red zone of sharp or lingering pain. Once you move into the stiff phase, the tissue tolerates and often requires more vigorous, sustained end-range loading to regain motion. Matching intensity to the phase you are in matters more than how hard you push on any given day.

Does frozen shoulder affect people with diabetes differently?

Yes, and it is worth knowing. People with diabetes are significantly more likely to develop frozen shoulder, the condition often affects both shoulders, and recovery is generally slower. Zreik and colleagues' 2016 meta-analysis estimated prevalence near 13% in people with diabetes compared to the 2 to 5% typically cited in the general population, with diabetic patients roughly five times more likely to develop the condition. I flag this at assessment because it shifts expectations on timeline, and keeping blood glucose well-controlled is sensible general care even if it will not on its own fix the shoulder.

Frozen Shoulder

Adhesive Capsulitis treatment

Treating frozen shoulder at my Burlington clinic. Convenient for Waterdown and Flamborough residents.

Important: When to seek immediate medical attention

Fever with shoulder pain

Medical assessment for possible infection

Sudden onset after trauma

X-ray to rule out fracture or dislocation

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Pathophysiology and contributing factors.

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The Science of Frozen Shoulder

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Frozen shoulder (adhesive capsulitis) involves thickening and tightening of the shoulder capsule. The normally loose capsule becomes inflamed then fibrotic, severely restricting movement. The condition typically progresses through freezing, frozen, and thawing phases. The exact trigger is often unknown but can follow injury, surgery, or periods of immobilization. Physiotherapy for frozen shoulder focuses on restoring range of motion through graded manual therapy and progressive loading, adapted to the stage of the condition. Frozen shoulder therapy is most effective when treatment intensity is matched to whether the capsule is in its inflammatory, fibrotic, or remodelling phase.

Conditions I commonly see alongside, or confused with, this one.

Commonly confused with

Side-by-side comparisons for patterns that often get mistaken for frozen shoulder.

Is this frozen shoulder or rotator cuff?
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How I separate frozen shoulder from rotator cuff by pattern, tests, and exam findings.

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