Frozen Shoulder Stages: Freezing, Frozen, Thawing

What do freezing, frozen and thawing actually mean?

They are names for which problem is in charge. In the freezing stage the lining of the joint (the capsule) is inflamed, so pain is the limit: the arm stops because it hurts, the ache sits deep in the shoulder and upper arm, and nights are bad. OrthoInfo describes this stage lasting anywhere from 6 weeks to 9 months, with pain building slowly and movement shrinking as it goes.

In the frozen stage the capsule has thickened. The pain usually settles to something more manageable, but the joint has run out of room, so the arm now stops because it cannot physically go further. OrthoInfo gives this stage 4 to 6 months. People often find this the most frustrating part, because they feel better and can do less than they expect.

Thawing is the slow return. Range comes back a bit at a time, and OrthoInfo puts a complete return to normal or close to normal strength and movement at 6 months to 2 years, with full recovery taking up to 3 years in some people. Staging the condition and treating it stage by stage is an old idea in the orthopedic literature (Hannafin and Chiaia, 2000). The framework is not new, and neither are the arguments about it.

Which stage of frozen shoulder am I in?

Three questions sort it out most of the time, and you can answer all three yourself.

First, what stops the arm? If it stops because of pain, with the stiffness almost an afterthought, you are behaving like a freezing shoulder. If you can push into the end of the movement and the pain is tolerable but the arm simply will not go, that is the frozen pattern.

Second, how are the nights? Pain that wakes you several times, or that stops you getting to sleep at all, puts you at the irritable end whatever your calendar says. Sleeping with a frozen shoulder deals with the positions that help.

Third, does help from the other hand change anything? Lift the sore arm with your good hand, or lie on your back and let gravity take some of the weight. If it goes noticeably further that way, pain and muscle guarding are doing some of the limiting. If it stops in the same place no matter who moves it, the capsule is the limit and one hard session will not change that. This is also one of the things that separates frozen shoulder from a painful tendon, which is why shoulder pain when lifting your arm and the rotator cuff tendinopathy program exist as separate pages.

Why the stages are not as tidy as the diagrams

The three-stage picture comes from a proposal made in the 1940s that frozen shoulder runs through painful, stiff and recovery phases and then resolves completely without treatment. Wong and colleagues went looking for the evidence behind it. They found seven studies, rated the evidence low quality, and reported that shoulders left untreated got some range of movement back but not all of it, over a span of 1 to 4 years, with most of what they did regain arriving early rather than late (Wong and colleagues, 2017).

So the sequence is a reasonable description of what pain and stiffness tend to do. It is not a timetable, and it does not promise a destination. Hand and colleagues followed 269 shoulders in 223 people for an average of 4.4 years from the first symptoms: 59 percent had normal or near normal shoulders, and 41 percent still had some symptoms. Of those remaining symptoms, 94 percent were mild and mostly pain, and 6 percent were severe, with pain and loss of function (Hand and colleagues, 2008). How long frozen shoulder lasts goes through those numbers properly.

What changes between the stages, and what does not

What changes is how hard you push. The JOSPT clinical practice guideline recommends stretching with the intensity set by how irritable the shoulder is (Kelley and colleagues, 2013), which in plain terms means gentle movement while it is angry and a firmer pull once it is not. Pushing hard early tends to backfire: Diercks and Stevens followed 77 people and found that those kept inside their pain limits were better off at two years than those given intensive passive stretching and mobilization. Nobody was randomized, so that study carries less weight than a trial would, and it points the same way as the guideline, which separately warns that stretching beyond painful limits may lead to poorer results.

What does not change is the frequency. A capsule that has tightened over months responds to being asked often, not to being forced once, which is why little and often beats a single heroic session at every stage. Frozen shoulder exercises by stage sets out what that looks like, and the frozen shoulder program carries the videos.

Two other things are worth knowing. Night pain usually settles before the stiffness does, so sleeping better is not the same as being better. And an injection is mainly a tool for the painful end of the condition rather than the stiff end, which is covered in injections and other treatments.

When to see a physio or doctor

Get it assessed rather than staged by yourself, especially early. A stiff, painful shoulder can be a rotator cuff problem, shoulder arthritis or pain referred from the neck, and the exercises for a tight capsule are not the exercises for a painful tendon. A physio (physical therapist) can check whether the arm stops in the same place when someone else moves it, which is the finding that matters most here.

Go back sooner if the shoulder stops improving over a couple of months, if night pain is wrecking your sleep, or if anything on the list below appears. Shoulder pain at night covers the night side in more detail.

Related exercise programs

Warning signs

Get emergency help now

Chest pain or tightness, which may spread to your arm, neck or jaw, or shoulder or arm pain that comes with shortness of breath, sweating or feeling sick. This can be a heart attack. Call emergency services straight away.
The shoulder feels as if it has slipped out of place, looks a different shape or suddenly locks so you cannot move the arm, or the pain is severe after a fall or an injury. Go to an emergency department straight away, without driving yourself, and do not try to put the shoulder back in yourself.
Your arm, hand or fingers turn cold, pale, blue or gray compared with the other side. Call emergency services or go to an emergency department straight away, and do not drive yourself. The blood supply to the arm may be blocked.
You have a fever or feel unwell, or the shoulder is hot, red and swollen. This can be a joint infection. Go to an emergency department straight away.

Get help today

Sudden, very bad shoulder pain, or you suddenly cannot lift or move your arm at all. Get medical help the same day.
The pain started after a fall, a pull or another injury, especially if the arm has been weak since, for example you cannot lift it out to the side or hold it up. This can be a broken bone or a torn tendon. Get medical advice the same day, and say how it happened and that the arm has been weak since, because UK shoulder surgeons advise urgent referral for a rotator cuff tear caused by an injury.
Severe pain in both shoulders that has come on recently. Get medical advice the same day.
You are over 50 and have aching and stiffness in both shoulders, often in the neck or hips too, that is worst in the morning and lasts more than 45 minutes after you get up. This can be an inflammatory condition (polymyalgia rheumatica) rather than frozen shoulder. If you also get a new headache, pain or tenderness at your temples or on your scalp, or jaw pain when you eat or talk, get medical advice the same day, and if your vision changes, call emergency services. Even without those extra signs, see your doctor within a few days about the aching and stiffness.
Pins and needles or numbness in the arm that does not go away, no feeling in part of the arm, or weakness that is getting worse. Get medical advice the same day. For pain spreading down the arm from your neck, ask for an urgent appointment with your doctor. If one side of your face or body suddenly goes numb or weak, or your speech becomes slurred or muddled, call emergency services, even if it goes away.
Pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse. If you are being treated for cancer now, contact your cancer team the same day.

Book an appointment

Pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse. If you have had cancer, now or in the past, or are losing weight without trying, see your doctor sooner, within a day or two, and mention it. This applies even if the pain is not getting worse.
Night pain is common with this condition, but get checked within a few days if the pain is constant, no rest or change of position eases it at all, and it keeps getting worse.
New shoulder pain and you have had cancer, now or in the past, or you are losing weight without trying. See your doctor within a day or two and mention it.

Common questions

Which stage of frozen shoulder is the most painful?

The freezing stage, for almost everyone. That is the one where pain is the thing stopping the arm, where night pain is at its worst, and where people most often give up on exercises because everything hurts. By the frozen stage the pain has usually quietened and the limit has become mechanical. If your shoulder is still waking you several times a night, treat yourself as being in the freezing stage whatever the calendar says, and keep the work gentle.

How do I know when my frozen shoulder is thawing?

By what you can reach, not by how it feels. The early signs are small and practical: the coat sleeve goes on without planning, the seatbelt is easy, you can get something off the back seat of the car. Pick two or three reaches that currently annoy you and retest them every couple of weeks, because month to month change is the only change you will notice at this speed. Turning the arm outward with the elbow at your side is usually the last movement to return, and some people keep a little less of it than on the other side.

Can you be in two stages of frozen shoulder at once?

In practice, yes, and most people are. Wong and colleagues reviewed seven studies and found no good evidence that frozen shoulder runs through fixed phases to a complete recovery without treatment, and that most improvement happened early rather than late (Wong and colleagues, 2017). What physios see matches that: pain and stiffness change on their own schedules, and a bad week can make a settled shoulder behave like a freezing one again. The stage is a description of this week, not a label you are stuck with.

Does the stage change the treatment?

It changes how hard you stretch, not what you do. The JOSPT clinical practice guideline recommends stretching with the intensity matched to how irritable the shoulder is, so the same exercise is done gently for a painful shoulder and taken to a firmer pull for a stiff one (Kelley and colleagues, 2013). That is why our program is laid out by irritability rather than by month number.

References

Kelley MJ, Shaffer MA, Kuhn JE, et al. Shoulder pain and mobility deficits: adhesive capsulitis. Clinical practice guidelines linked to the International Classification of Functioning, Disability, and Health from the Orthopaedic Section of the American Physical Therapy Association. Journal of Orthopaedic and Sports Physical Therapy. 2013;43(5):A1-A31. https://doi.org/10.2519/jospt.2013.0302
Wong CK, Levine WN, Deo K, et al. Natural history of frozen shoulder: fact or fiction? A systematic review. Physiotherapy. 2017;103(1):40-47. https://doi.org/10.1016/j.physio.2016.05.009
American Academy of Orthopaedic Surgeons. Frozen shoulder. OrthoInfo. https://www.orthoinfo.org/en/diseases--conditions/frozen-shoulder/
Hannafin JA, Chiaia TA. Adhesive capsulitis. A treatment approach. Clinical Orthopaedics and Related Research. 2000;(372):95-109. https://pubmed.ncbi.nlm.nih.gov/10738419/
Diercks RL, Stevens M. Gentle thawing of the frozen shoulder: a prospective study of supervised neglect versus intensive physical therapy in seventy-seven patients with frozen shoulder syndrome followed up for two years. Journal of Shoulder and Elbow Surgery. 2004;13(5):499-502. https://doi.org/10.1016/j.jse.2004.03.002
Hand C, Clipsham K, Rees JL, Carr AJ. Long-term outcome of frozen shoulder. Journal of Shoulder and Elbow Surgery. 2008;17(2):231-236. https://doi.org/10.1016/j.jse.2007.05.009

Written and checked by the PocketPhysio editorial team. Last updated 2026-10-18.

This page is general education, not a diagnosis or a personal treatment plan. See a physiotherapist or doctor for advice about your own situation.

Frozen shoulder stages: freezing, frozen and thawing