Introduction
Shoulder care · Stiffness
Frozen shoulder (adhesive capsulitis)
Dr Sean LeoOrthopaedic Surgeon, Singapore
Clinic enquiries · Not an emergency service
Illustrative image
Frozen shoulder
Frozen shoulder
Frozen shoulder (adhesive capsulitis) makes the shoulder painful and stiff.
- Frozen shoulder (adhesive capsulitis) means the shoulder becomes painful and stiff, and over time very hard to move.[3] It happens when the capsule, the sleeve of tissue that wraps the joint, thickens and tightens.[3]
- It usually unfolds in stages, and most people improve with relatively simple treatments to control pain and restore movement.[3] Surgery is not automatic. It is kept for when other care has not been enough.[3]
- Stiffness has more than one possible cause, so the answer comes from assessment, not from a webpage. A tear in the rotator cuff, pinching pain, a shoulder that has come out of joint and pain in general each have their own pages, linked below.
- OrthoKinetics is Dr Sean Leo’s professional brand. Clinical consultations and treatment are provided through OrthoSports Orthopaedic & Sports Surgery. Dr Sean Leo is a specialist orthopaedic surgeon who cares for shoulder problems.
What’s covered on this webpage
Follow the route in order, or jump to the stop you need. Stops you have read are marked.
The shoulder joint is wrapped in a capsule that normally lets it move freely.
The shoulder joint is wrapped in a capsule that normally lets it move freely.
The shoulder joint is wrapped in a capsule that normally lets it move freely.
The shoulder joint is wrapped in a capsule, a sleeve of tissue that surrounds the joint, and the joint is lined with a lubricating fluid.[3][5] Together they let the shoulder glide through its full range of movement.
That is the one structure worth knowing about for this page. When the capsule changes, the shoulder stiffens, and the next section explains how.
In a frozen shoulder, the capsule tightens and the joint stiffens.
In a frozen shoulder, the capsule tightens and the joint stiffens.
In a frozen shoulder, the capsule tightens and the joint stiffens.
In a frozen shoulder, the capsule thickens and becomes stiff and tight. Thick bands of tissue, called adhesions, develop, and in many cases there is less lubricating fluid in the joint.[3] This is the accepted picture of what happens. It is not a single proven trigger, and the process is not fully understood.[5]
Frozen shoulder most commonly affects people between the ages of 40 and 60, and it occurs in women more often than in men.[3] Diabetes and thyroid conditions are associated with a higher chance of developing it, and it sometimes follows an injury or surgery.[2][3] Those are associations, not proven causes. A frozen shoulder can happen to anyone at any time, and it says nothing about how carefully you have looked after your shoulder.[3]
It usually begins with pain, and then the shoulder stiffens.
It usually begins with pain, and then the shoulder stiffens.
It usually begins with pain, and then the shoulder stiffens.
A frozen shoulder usually begins with pain that slowly builds. As the pain worsens, the shoulder loses range of motion.[3] Over time, movements such as lifting the arm and turning it become limited, which is why reaching overhead or behind the back can get harder.[2]
The hallmark is severe pain together with being unable to move the shoulder, either on your own or with the help of someone else.[3] That distinction between moving it yourself and having it moved for you is explained under diagnosis below.
Symptoms describe what is happening. They do not by themselves confirm the condition, and other shoulder problems can also cause pain and stiffness.
Frozen shoulder or a rotator cuff problem
Frozen shoulder or a rotator cuff problem
Frozen shoulder or a rotator cuff problem?
Many people wonder whether a stiff, painful shoulder is a frozen shoulder or a torn rotator cuff. As a broad pattern, a frozen shoulder is mainly stiffness. The shoulder does not move as far as it should, whether you move it or someone else moves it for you.[3][2]
The two can overlap, and the difference is settled by examination, not by reading a page. This is a way of recognising the pattern. It is not a way to diagnose yourself at home.[5]
For weakness and tears, the rotator cuff tear page explains more. For pinching pain with overhead reaching, see the shoulder impingement (bone spurs) page. If the shoulder has come out of joint, see the shoulder dislocation page.
A frozen shoulder typically moves through three stages.
A frozen shoulder typically moves through three stages.
A frozen shoulder typically moves through three stages.
A frozen shoulder is usually described in three stages. The month ranges below are from the American Academy of Orthopaedic Surgeons (AAOS). They are ranges, not fixed numbers, and they vary from person to person.[3]
| Stage | What it is like | Typical range (AAOS) |
|---|---|---|
| Freezing | You slowly have more and more pain, and the shoulder loses range of motion. | 6 weeks to 9 months |
| Frozen | Painful symptoms may improve, but the stiffness remains, and daily activities may be very difficult. | 4 to 6 months |
| Thawing | Shoulder motion slowly improves. A complete return to normal or close to normal strength and motion typically takes from 6 months to 2 years. | 6 months to 2 years |
The pattern matters more than any exact number: pain first, then stiffness, then a slow return of movement.[3][5]
Why other sources give different month ranges
Sources do not agree on exact stage lengths. StatPearls gives freezing as 2 to 9 months, frozen as 4 to 12 months and thawing as 12 to 42 months, and notes that a four-stage classification also appears in the literature.[5] The Kelley clinical practice guideline describes four stages with different splits.[2] None of these is a schedule you are expected to follow, and a longer stage does not mean treatment has failed.
When should I get this assessed?
When should I get this assessed?
When should I get this assessed?
It is worth being assessed if shoulder pain and stiffness do not go away, or if the pain is bad enough to make it hard to move your arm and shoulder.[4] A GP or family doctor is a reasonable first stop, and a specialist orthopaedic surgeon who cares for shoulder problems can assess the shoulder directly if it is not settling.
Waiting it out indefinitely is not the plan. An assessment can tell you what is going on and what your options are.
Some signs mean a shoulder should be seen urgently rather than at a routine appointment. Those signs are listed under Final next step at the end of this page.
Safety note: This webpage is not an emergency service. No list on this page can rule out a serious problem remotely.
A frozen shoulder is diagnosed from the story and an examination.
A frozen shoulder is diagnosed from the story and an examination.
A frozen shoulder is diagnosed from the story and an examination.
Assessment starts with the story of how the pain began and how the shoulder behaves. The examination then looks at how far the shoulder moves in two ways.[2][3]
- Active movement is how far you can move the arm yourself.
- Passive movement is how far the clinician can move the arm for you while you stay relaxed.
In a frozen shoulder, both are limited, in lifting the arm and in rotating it.[2][3] A clinician checks this during an examination. It is not a test to try at home.
No single test confirms a frozen shoulder. It is a clinical diagnosis made from the history, the examination and, where needed, imaging, and the imaging mainly rules out other conditions rather than confirming this one.[5] A plain X-ray is typically normal in a frozen shoulder, though it can show other problems such as arthritis of the shoulder joint.[2] Scans are used mainly to rule out other causes, such as arthritis or a rotator cuff tear.[5]
Pain felt at the shoulder can sometimes come from the neck, which is one reason assessment looks at the whole picture.[6] For shoulder pain in general, see the shoulder pain page.
Most frozen shoulders are treated without surgery.
Most frozen shoulders are treated without surgery.
Most frozen shoulders are treated without surgery.
Most people with a frozen shoulder improve with relatively simple treatments to control pain and restore motion.[3] The focus is on pain control and on restoring motion and strength through physiotherapy.[3] There is no single agreed protocol, so what suits you is worked out with your clinician.[5]
- Pain relief. Pain is usually managed first with paracetamol. If that does not work, a non-steroidal anti-inflammatory medicine such as ibuprofen may be tried. Take them as directed, and ask a pharmacist or clinician if you are unsure. Stronger pain relief is usually used only for a short time because it can cause side effects.[4][5]
- Keep the shoulder moving. Physiotherapy with a focus on shoulder flexibility is the primary treatment recommendation.[3] Keeping the shoulder still will make the pain worse, so the aim is to move it gently, guided by a physiotherapist, with stretching exercises, strength exercises and posture advice.[4] Making up your own strenuous exercises, such as on gym equipment, can make the pain worse.[4]
- Injection. A corticosteroid (cortisone) injection into the shoulder joint is one option for pain, considered when simpler measures have not helped.[3][5] It is an option, not a promised fix, and movement and physiotherapy remain part of care.[3][4]
- Hydrodilatation. If symptoms are not relieved by other non-surgical methods, hydrodilatation may be recommended. This gently injects a large volume of sterile fluid into the shoulder joint, guided by imaging, to expand and stretch the capsule.[3]
When is surgery considered?
When is surgery considered?
When is surgery considered?
Surgery is not the usual next step. If your symptoms are not relieved by therapy and other conservative methods, you and your doctor may discuss it.[3]
It is typically offered during the stiff, or frozen, stage.[3] The goal is to stretch and release the stiffened joint capsule.[3] The decision weighs your potential for recovery to continue with simple treatments against the risks of surgery, and that is talked through with your surgeon.[3]
Structure / Patient / Goal
Structure / Patient / Goal
Deciding together
Structure / Patient / Goal
S
Structure: what is affected?
Structure is what is affected: the shoulder capsule, the stage the shoulder is in, and anything else the assessment finds.
P
Patient: how does it affect you?
Patient means you as a whole person. Your pain, how much movement you have, your general health (including any diabetes or thyroid condition), your preferences and your circumstances all shape which options are reasonable.
G
Goal: what are you hoping to return to?
Goal is what matters to you, whether that is reaching overhead, dressing, work or sport. A useful plan starts from a clear purpose.
Your plan
No single factor decides treatment alone, and one scan or one symptom does not determine the plan.
How is treatment matched to the stage, and when is a procedure considered
How is treatment matched to the stage, and when is a procedure considered
How is treatment matched to the stage, and when is a procedure considered?
Treatment is matched to the stage and to how the shoulder is progressing, not to a fixed rule.[3][5] Most people start with non-surgical care, pain relief and guided movement, and settle on it.[3]
If simpler measures have not helped, an injection or hydrodilatation may be considered.[3][5] Surgery is discussed if therapy and other conservative methods have not relieved the symptoms, typically during the frozen stage.[3] One reference describes considering hydrodilatation and surgery when there has been no improvement after about 6 months of non-surgical care.[5] That is a source frame, not a rule.
The point at which care moves from one step to the next is an individual judgement made with your treating clinician, from the examination and how you are progressing. It is not something to decide from a webpage or from the stage alone.
Surgery releases the tightened capsule.
Surgery releases the tightened capsule.
Surgery releases the tightened capsule.
Surgery aims to stretch and release the stiffened joint capsule. The two most common methods are these.[3]
- Manipulation under anaesthesia. You are put to sleep, and the doctor moves your shoulder, which causes the capsule and scar tissue to stretch or tear. This releases the tightening and increases range of motion.[3]
- Arthroscopic release. The doctor may cut through tight portions of the joint capsule, using pencil-sized instruments inserted through small incisions around your shoulder.[3]
In many cases the two are used together.[3] Physiotherapy is still needed afterwards to keep the motion that was gained.[3]
Recovery is gradual and is measured in months to years.
Recovery is gradual and is measured in months to years.
Recovery
Recovery is gradual and is measured in months to years.
Recovery from a frozen shoulder is gradual. It commonly takes many months, and full recovery may take up to 3 years.[3][5] Most of the improvement tends to happen early rather than late.[1] At 12 to 18 months, mild to moderate stiffness and pain may still be present, though many people report minimal to no disability.[2] How much movement returns varies from person to person, and your clinician can tell you what to expect for your own shoulder.
Moving the shoulder is itself part of recovery. Keeping it still will make the pain worse.[4]
After surgery, physiotherapy is necessary to maintain the motion achieved, and recovery times range from 6 weeks to 3 months.[3] It is a slow process, and AAOS describes commitment to therapy as the most important factor in returning to the activities you enjoy.[3] Long-term outcomes after surgery are described as generally good, with most patients having reduced or no pain and improved range of motion, though in some cases some stiffness remains even after several years.[3]
Risks and complications
Risks and complications
Risks and complications
Every route of care has limits, and it is better to know them before you decide than to find out afterwards.
Non-surgical care. The main limitation is that improvement can be incomplete, and some stiffness may remain.[1][3]
Manipulation under anaesthesia. Recognised complications include fracture of the upper arm bone and injury to the biceps tendon.[5] Individual risks are discussed with your surgeon.
Surgery in general. The risks that apply to you depend on your shoulder and your health, and your surgeon can go through them with you before you decide.[3]
Some stiffness can persist. Even after treatment, some degree of stiffness can remain for years.[3]
Will the shoulder get fully better, and could it come back
Will the shoulder get fully better, and could it come back
Will the shoulder get fully better, and could it come back?
Most people with a frozen shoulder recover well, but a complete return to exactly how the shoulder was is not guaranteed.[5][3]
The idea that a frozen shoulder always works its way through to full recovery without treatment is not supported by the evidence. A systematic review found that without treatment there was some, but not complete, improvement in range of motion after 1 to 4 years.[1] Even after several years, the motion does not always return completely, and some degree of stiffness can remain.[3]
The other shoulder can also become affected later, and a previous episode in the opposite arm is associated with a higher chance of it.[2][5] That is an association from groups of people. It does not predict what will happen to you.
Treatment and assessment are still part of the picture: improvement is real, often gradual and sometimes incomplete, and the honest expectation is to plan around that rather than around a promise.[1][3]
OrthoKinetics Recovery Reflection
Recovery reflection
If keeping a stiff shoulder still only makes it worse, what does it ask of you to move it with care?
Many injuries ask for rest. A frozen shoulder is different: keeping it still will make the pain worse,[4] and the movement that feels hard is part of what helps the joint loosen. That can sit uneasily, because moving something that hurts goes against instinct. It does not mean pushing through pain. It means gentle, guided movement within comfort, worked out with a physiotherapist.[3][4]
How would you recognise a thaw that arrives in small degrees, not all at once?
In the thawing stage, motion slowly improves.[3] It rarely arrives as a single good day. It may be a reach that goes a little higher this week, or an arm that turns a little further behind you. Those small returns are easy to overlook while you are waiting for the shoulder to feel normal. They are the recovery itself, and they are worth noticing.
A frozen shoulder thaws gradually. Movement returns in small degrees over months, and each small return is part of the recovery itself.
Illustrative image
With you through the seasonsMeet Dr Sean Leo
Meet Dr Sean Leo
A consultant orthopaedic surgeon whose clinical focus is the knee, sports injuries and the lower limb.
- Dr Sean Leo is a consultant orthopaedic surgeon. OrthoKinetics is his professional brand; clinical services are provided through OrthoSports Orthopaedic & Sports Surgery at Mount Elizabeth Novena Specialist Centre and Connexion, Farrer Park Hospital.
- His clinical interests include sports injuries, including those in adolescent athletes; ligament reconstruction; realignment surgery; cartilage repair and joint-preservation approaches; knee replacement; and technology-assisted hip and knee surgery.
- The consistent aim is to return people to meaningful function and activity while avoiding unnecessary downtime.
- Qualifications: MBBS, MRCS (Ed), MMed (Ortho), FRCSEd (Ortho).
More detail: Meet Dr Sean Leo
- Training and career: Dr Leo trained in medicine at the National University of Singapore and served in the Singapore Armed Forces Medical Corps from 2000 to 2012, where his work included the care of soldiers in physically demanding roles. He completed postgraduate orthopaedic training in 2009 and a one-year clinical fellowship at Royal North Shore Hospital in Sydney, Australia, before joining Changi General Hospital as an orthopaedic consultant in 2012, where he later held the positions of Senior Consultant and Director of the Hip and Knee Service. With seniority, his educational contribution has evolved towards mentorship and support for junior doctors.
Questions people often ask
Common frozen shoulder questions
Common frozen shoulder questions
What is a frozen shoulder (adhesive capsulitis)?
Frozen shoulder, also called adhesive capsulitis, causes pain and stiffness in the shoulder, and over time the shoulder becomes very hard to move. The capsule that wraps the joint thickens and tightens, with bands of scar-like tissue called adhesions. It is a recognised condition with a typical pattern, not a sign that you did something wrong.[3]
How do I know if my shoulder is frozen?
You cannot tell from symptoms alone. A frozen shoulder typically brings a gradual, progressive onset of pain and loss of both active and passive movement, meaning movement you make yourself and movement someone else makes for you. A clinician confirms this by history and examination, and scans mainly rule out other causes.[2][5]
What are the stages of a frozen shoulder?
A frozen shoulder is usually described in three stages: freezing, with increasing pain and loss of movement; frozen, when pain may ease but stiffness remains; and thawing, when motion slowly improves. AAOS gives ranges of 6 weeks to 9 months, 4 to 6 months, and 6 months to 2 years, and other sources differ.[3][5]
How long does a frozen shoulder last, and will I get full movement back?
It commonly takes many months, and full recovery may take up to 3 years. At 12 to 18 months, mild to moderate stiffness and pain may persist, although many people report minimal to no disability. Full return to exactly how the shoulder was is not guaranteed, and your clinician can discuss what to expect.[2][3]
Will a frozen shoulder heal on its own?
It tends to get better over time, but the idea that it reliably resolves fully without treatment is not supported. A systematic review found some, but not complete, improvement after 1 to 4 years without treatment, with most improvement happening early. Assessment and treatment are worthwhile, and expectations are best kept realistic.[1][3]
Can a frozen shoulder be treated without surgery?
Yes. Most people improve with relatively simple treatments to control pain and restore motion. Physiotherapy focused on shoulder flexibility is the primary recommendation, alongside pain relief, and an injection or hydrodilatation are options if simpler measures have not helped. Keeping the shoulder still will make the pain worse, so gentle guided movement matters.[3][4]
Does diabetes cause a frozen shoulder?
Diabetes is associated with a higher chance of developing a frozen shoulder, as are thyroid conditions, but that is an association and not a proven cause. Many people with a frozen shoulder do not have diabetes, and a frozen shoulder can happen to anyone at any time. Whether it applies to you is a question for assessment.[2][3]
What is the difference between a frozen shoulder and a rotator cuff tear?
As a broad pattern, a frozen shoulder is mainly stiffness, with movement limited whether you move the arm or someone else does. The two can overlap, and only an examination settles which applies. The rotator cuff tear page explains tears in more detail.[3]
Why can’t I reach behind my back or lift my arm above my head?
In a frozen shoulder there is a loss of active and passive movement in both lifting the arm and rotating it, which reaching overhead or behind the back rely on. Other shoulder problems can also limit these movements, so an assessment is what tells them apart rather than the movement alone.[2]
When does a frozen shoulder need surgery?
Not automatically. Surgery may be discussed if therapy and other conservative methods have not relieved the symptoms, and it is typically offered during the stiff, frozen stage. You and your surgeon weigh your potential for continued recovery with simple treatments against the risks of surgery.[3]
Is a frozen shoulder permanent?
Most people recover well over months to years, but a complete return is not guaranteed. Some stiffness can remain even after several years, and the other shoulder can become affected later. What this means for your shoulder is best discussed with your clinician, from an examination and how you are progressing.[3][5]
Costs and insurance
Costs and insurance
Practicalities
Cost, Medisave and insurance
Ask the clinic team for current information about fees, panel status, pre-authorisation and expected payment arrangements. Insurance coverage and out-of-pocket costs depend on the individual policy and the insurer’s decision; no coverage is guaranteed.
A cost estimate for surgery can be given only after a consultation and assessment, once a surgical plan has been developed. Each individual condition is unique — implants used, time taken, and other factors contribute to the overall estimate. The estimate will be provided to you by the clinic should you decide on surgical management, and will also be used to assist in obtaining pre-authorisation from insurance where applicable.
Insurance panels. Dr Sean Leo, Orthopaedic Surgeon, is on the specialist panels of Great Eastern (GE Panel), HSBC Life (HSBC Life Shield) and Singlife (Singlife Shield), and on the Prudential Panel. AXA Insurance Singapore became part of HSBC Life in 2023, and former AXA Shield plans are now HSBC Life Shield plans.
Corporate health plans. Dr Leo is on the panels of both Alliance Medinet and iXchange, which administer medical benefits for many company health plans. If your company plan uses either panel, you can see Dr Leo as a panel doctor.
If your company uses a different panel. Some company plans still let you see a doctor of your choice outside their panel, then claim reimbursement. This varies from plan to plan, as may the co-payment, so please check your benefits with your company’s HR department.
Panel arrangements change from time to time, so please confirm with your insurer or your company’s plan administrator before your appointment.
Dr Leo is on the panels shown. If your insurer is not listed, you may ask whether co-management with an Orthosports surgeon partner on that panel is clinically and administratively appropriate. Orthosports surgeon partners are collectively on the panels of all Shield plans.
Specific benefits, pre-authorisation, reimbursement and cashless treatment depend on the individual policy and insurer approval and are not guaranteed.
Arrange a consultation: the appointment section is further down this page.
Sources
References
References
- 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. PMID 27641499. doi:10.1016/j.physio.2016.05.009.
- Kelley MJ, Shaffer MA, Kuhn JE, et al. Shoulder Pain and Mobility Deficits: Adhesive Capsulitis. J Orthop Sports Phys Ther. 2013;43(5):A1-A31. doi:10.2519/jospt.2013.0302.
- American Academy of Orthopaedic Surgeons. Frozen Shoulder. OrthoInfo. https://orthoinfo.aaos.org/diseases–conditions/frozen-shoulder
- NHS.uk. Frozen shoulder. https://www.nhs.uk/conditions/frozen-shoulder/
- Mezian K, Coffey R, Chang K-V. Frozen Shoulder. StatPearls [Internet]. NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK482162/
- American Academy of Orthopaedic Surgeons. Neck Pain. OrthoInfo. https://orthoinfo.aaos.org/en/diseases–conditions/neck-pain
Final next step
Final next step
Next step
Final next step
Reading about a problem is a starting point. An assessment brings together the history, an examination where needed and any useful tests, and helps you and your clinician decide what to do next. How much physical examination is needed is a matter of clinical judgement. It may be limited when pain makes an examination unreliable, or when imaging clearly shows a problem that matches the symptoms, such as a fracture seen on an X-ray or an MRI scan that clearly shows an injury consistent with the symptoms. The Singapore Medical Council and the UK General Medical Council both allow remote medical consultations, where a physical examination is not possible, with safeguards: the doctor must be clear about the limits of an opinion formed without an examination, and whether an in-person examination is needed, or referral to other services, is left to the clinical judgement of the attending doctor.
Signs that need urgent help
Some symptoms should not wait for a routine appointment. Each item below says where to go.
After an injury
- After a fall or other injury, the shoulder looks out of place or has changed shape, you cannot move your arm, or the shoulder is painful, bruised or swollen. Go to an emergency department or call 995.
- After an injury, the arm or hand is numb, tingling, cool to the touch, or has turned white or purple. Go to an emergency department or call 995.
- After a fall, you have intense pain, a snapping feeling and sudden weakness in your upper arm. Arrange a prompt assessment.
At any time
- A joint, such as the shoulder, is suddenly very painful, hot, red and swollen (redness may be harder to see on darker skin), especially with a fever or feeling generally unwell. Go to an emergency department or call 995.
- You have chest pain that feels tight or like squeezing, or chest pain that spreads to your arm, neck or jaw, or you have severe difficulty breathing. Go to an emergency department or call 995.
- Your shoulder symptoms come with fever, night sweats or weight loss. Arrange an urgent same-day assessment.
If you are admitted by the doctor at the urgent care centre of one of these private hospitals, the Parkway Pantai hospitals (Mount Elizabeth Orchard, Mount Elizabeth Novena, Gleneagles and Parkway East), Farrer Park Hospital and Thomson Medical Centre, you may ask for Dr Sean Leo to be your attending orthopaedic surgeon. If you are instead discharged and referred for orthopaedic follow-up, you may contact the clinic to arrange an appointment. Both are subject to the hospital’s admission processes and to Dr Leo’s availability.
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