Frozen shoulder, or adhesive capsulitis, is a problem with the capsule - the sleeve of tissue that surrounds the shoulder joint. The capsule becomes inflamed and then thickens and contracts, so the joint simply has less room to move. That is why the shoulder stiffens in every direction, including turning the arm outwards, and why the stiffness is there even when someone else moves the arm for you.
It often arrives with no clear cause at all. It is most common between the ages of 40 and 60, affects women slightly more often, and is more likely in people with diabetes or a thyroid condition. It can also follow a period of the arm being kept still after an injury or an operation. Nothing you did wrong caused it.
It usually moves through phases. First a painful freezing phase, where the ache is deep, spreads into the upper arm and disturbs sleep. Then a stiff phase, where the pain settles but movement is very limited and everyday tasks like dressing, driving and reaching a back pocket become awkward. Finally a thawing phase, where range slowly returns.
It is not dangerous and it does resolve, but it is genuinely slow: the whole cycle commonly runs one to three years, though good management shortens the worst of it and most people regain useful function well before full range returns. This programme matches the phase you are in - keeping the shoulder moving without provoking an angry capsule early on, working steadily on range as the pain settles, then rebuilding strength as movement comes back.
Adults with a progressively stiff and painful shoulder that has lost range in all directions, including turning the arm outwards, with no history of a significant injury. It suits any phase, from the painful early months to the stiff and thawing stages. If the stiffness followed a fall or a dislocation, get it assessed first.
For the painful freezing phase. The goal is to maintain what movement you have with gentle, pain-respecting exercises, not to force range. Pushing hard into pain now tends to make it worse.
As pain eases and the shoulder enters the stiff phase, work more firmly on stretching into the restricted directions, holding stretches longer and more often. Some discomfort during stretching is acceptable if it settles quickly.
In the thawing phase, add strengthening for the rotator cuff and shoulder blade as range comes back, and rebuild everyday and overhead tasks gradually.
Frozen shoulder is self-limiting but slow: many people take 1 to 3 years to fully recover, and a small number are left with some lasting stiffness. Pain usually improves well before movement does. Exercise, and in some cases an injection or a hydrodilatation procedure, can speed things along.
Let pain guide the intensity. In the freezing phase, keep stretches gentle and frequent. Once pain has clearly settled, you can stretch more firmly and it is safe to feel a strong pull, as long as it eases within 15 to 30 minutes and does not leave the shoulder more painful overnight.
Yes, in most cases, but it can take a long time. The aim of treatment is to reduce pain, keep as much movement as possible, and shorten the overall course.
Not during the painful early phase - aggressive stretching then often increases pain and guarding. Once the shoulder is stiff but no longer very painful, firmer stretching is appropriate and helpful.
A corticosteroid injection into the joint, particularly early on, can reduce pain and may improve range when combined with exercises. It is worth discussing with a clinician if pain is severe.
It can. Around one in five people go on to develop it in the other shoulder, usually not at the same time. Keeping both shoulders moving and well managed is sensible, especially if you have diabetes.
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