Frozen Shoulder: Stages, How Long It Takes, and How Physiotherapy Helps

A shoulder that grows more painful and then stiffer, with no clear injury: that is the typical picture of a frozen shoulder, known medically as adhesive capsulitis. This article explains what actually happens inside the joint, who gets it more often, its three stages and how long they usually last, what sets it apart from other shoulder pain, what you can do yourself, and how physiotherapy helps at each stage. It is general education, not a substitute for an in-person examination.

What happens in a frozen shoulder?

The shoulder joint is wrapped in a capsule of connective tissue that is normally loose, so the arm can move in every direction. In a frozen shoulder this capsule becomes inflamed, thickens and tightens. The space inside the joint narrows, and pain and stiffness build slowly over months.

The most telling feature: movement is limited both when you move the arm yourself and when someone else moves it for you. Turning the arm outward, reaching behind your head to comb your hair for instance, is usually the first and worst affected. In ordinary muscle pain or a tendon injury, assisted movement generally stays much freer.

Who gets it more often?

People aged 40 to 60, women more often than men.
Diabetes: the risk is several times higher and the course tends to be longer. Thyroid disorders also raise the risk.
A shoulder kept still for a long time: after a fracture, surgery, a stroke, or weeks in a sling.
Having had it in one shoulder: the other shoulder is at higher risk of the same later on.

Often there is no clear trigger at all, and that is normal for this condition.

Three stages, and how long they usually take

The course is gradual, and everyone's course is different. The figures below are commonly reported ranges, not promises.

Painful stage (freezing), about 2 to 9 months. Pain rises slowly, especially with movement and at night; lying on that side becomes hard. Range of motion starts to shrink.
Stiff stage (frozen), about 4 to 12 months. Pain often eases a little, but stiffness takes over: getting dressed, reaching a back pocket or a high shelf becomes difficult.
Recovery stage (thawing), about 5 months to 2 years. Movement returns little by little.

Altogether the problem often lasts one to three years. Most people recover well; long-term studies find that some keep a little stiffness or mild pain years later, usually without it getting in the way. The good news: you do not have to wait for the shoulder to "thaw" on its own. Everyday function can be protected and improved all the way through.

Symptoms to recognize

A deep, dull ache in the shoulder, sometimes spreading into the upper arm.
Stiffness that increases over weeks to months, not days.
Night pain, especially lying on the painful side.
Trouble with "reaching back" movements: fastening a bra, combing hair, grabbing a seat belt, getting an arm into a jacket sleeve.

How is it diagnosed?

A frozen shoulder is recognized mainly by physical examination: the characteristic pattern of restricted movement, outward rotation above all, both active and assisted. X-rays are usually normal in a frozen shoulder; a doctor orders them to rule out other causes such as joint arthritis or calcium deposits in a tendon. Ultrasound or MRI is not always needed, and "abnormal" findings at this age are often present in shoulders that do not hurt at all.

What you can do yourself

Keep moving within tolerable pain. Gentle movement several times a day beats complete rest, and also beats forcing through sharp pain.
Warm before, cool after. A warm compress for 10 to 15 minutes before exercises usually makes the shoulder feel looser and easier to move; a cold compress afterwards if it throbs.
Sleeping position. On your back, or on the good side with a pillow supporting the painful arm in front of your chest.
Use the arm for light tasks that are still comfortable, so the surrounding muscles do not weaken.
No forceful massage. Gentle massage of the muscles around the shoulder can feel good, but having the shoulder "pulled" or twisted by someone who is not a health professional risks making the pain worse.

How physiotherapy helps at each stage

Treatment is matched to the stage; an exercise that suits the stiff stage can make the pain of the early stage worse.

Painful stage: the main goals are easing pain and keeping the movement you still have. Gentle range-of-motion exercises, low-dose manual therapy, positioning advice and pacing of activity. At this stage a doctor may consider a corticosteroid injection into the joint; reviews of the research show that such an injection, combined with home exercises, gives faster improvement in pain and movement over the first months. That decision belongs to the doctor, and physiotherapy continues alongside it.
Stiff stage: the focus shifts to regaining range: progressive stretches held longer, joint mobilization by the physiotherapist, and a daily home program. Intensity rises gradually with your response, never by force.
Recovery stage: rebuilding strength and control of the shoulder and shoulder-blade muscles, then returning to what you had been avoiding: sport, lifting, overhead work.

The evidence for exercise and manual therapy in frozen shoulder is limited to moderate in quality; there is no single magic technique. What the research suggests: a graded, regular program done at home tends to give better function than waiting alone. For a very stiff shoulder that is not improving, a specialist doctor may consider procedures such as hydrodilatation or capsular release; those too are followed by physiotherapy.

At Care Physio

The first session is a thorough assessment of about 60 to 90 minutes: we map which directions are restricted and by how much, work out the stage, and spot when the pattern does not fit a frozen shoulder, pointing you to a doctor if needed. From there comes a clear plan: what is done in the clinic, which exercises you do at home every day, and when we reassess. Bring any X-ray or other results you have, although they are not required.

When to see a doctor first

Shoulder pain that started after a fall or a blow, especially if the shape of the shoulder has changed: a possible fracture or dislocation.
Fever, a shoulder that is swollen, hot and red, or feeling generally unwell.
Sudden weakness, numbness or tingling running into the hand.
Left shoulder pain that comes with chest pain, breathlessness or a cold sweat: go to the nearest emergency department (IGD) at once, this can be a sign of a heart problem.
A history of cancer, unexplained weight loss, or pain that keeps getting worse at rest at night.

Frequently asked questions

How long does a frozen shoulder take to recover?

Usually one to three years for the whole course, with wide variation between people; diabetes tends to lengthen it. What can be changed is how well the shoulder works during that time: pain kept under control and movement preserved from the start can make the stiff stage easier to live with.

Can it get better on its own?

Many do improve with time, but "waiting" often means months of broken sleep and a shoulder that keeps stiffening, and some people are left with lasting stiffness. Guided exercise has not been shown to speed up the "thaw", but it helps protect function and reduce pain along the way.

Do I need an X-ray or MRI?

Not always. The diagnosis is clinical. Imaging is used when there has been an injury, another cause is suspected, or the complaint does not fit the pattern; the doctor decides.

Is massage all right?

Gentle massage of the neck and shoulder muscles is fine if it feels comfortable. Avoid forceful manipulation of the joint by anyone who is not a health professional; a joint with an inflamed capsule is easily made more painful.

Which exercise is safe?

Walking, a stationary bike and lower-body training remain safe and worthwhile. For the arm, follow the program built for your stage; jerky overhead movements and heavy lifting are best postponed until range of motion returns.

Main sources: Challoumas D et al. (2020), systematic review and network meta-analysis of treatments for frozen shoulder, JAMA Network Open; Hand C et al. (2008), long-term outcome of frozen shoulder, Journal of Shoulder and Elbow Surgery; Page MJ et al. (2014), manual therapy and exercise for adhesive capsulitis, Cochrane Database of Systematic Reviews. This is general information and not a substitute for an in-person examination by a health professional.