Frozen shoulder is a painful and frustrating condition that gradually limits movement in the shoulder joint. Simple activities such as reaching overhead, fastening a bra, putting on a jacket, washing hair or lifting a kettle can become extremely difficult.
The condition usually develops slowly and can last many months or even years. Although frozen shoulder eventually improves for most people, the process can be long and uncomfortable if it is not managed properly.
This guide explains what frozen shoulder is, why it happens, how it is diagnosed in the UK, and the most effective treatments available to help reduce pain and restore movement.
What is frozen shoulder?
Frozen shoulder, also known as adhesive capsulitis, happens when the connective tissue around the shoulder joint becomes inflamed, thickened and tight.
The shoulder joint is surrounded by a capsule of soft tissue. When this capsule tightens, it restricts movement and causes pain. Over time, the shoulder can become stiff and difficult to move in almost any direction.
The NHS explains that frozen shoulder develops when the tissue around the shoulder joint becomes inflamed and stiff, limiting movement.
The condition usually affects one shoulder at a time, although some people may develop it in both shoulders at different times.
The three stages of frozen shoulder
Frozen shoulder often progresses through three stages. Not everyone follows the same pattern exactly, but these stages help explain why symptoms can change over time.
1. Freezing stage
In the early stage, pain gradually increases and shoulder movement becomes more limited. Discomfort may worsen at night and interfere with sleep.
This stage can last several months and is often when people first seek medical help. Pain can be the most troublesome symptom during this phase.
2. Frozen stage
During the frozen stage, pain may begin to improve slightly, but stiffness becomes more severe. Movement is significantly restricted and everyday tasks may become difficult.
Activities such as reaching overhead, reaching behind the back, dressing, driving or lifting objects often become challenging.
3. Thawing stage
In the final stage, shoulder movement gradually improves. Stiffness slowly reduces and normal function begins to return.
Recovery during this stage may take several months, but most people eventually regain much of their shoulder mobility.
What causes frozen shoulder?
In many cases, the exact cause of frozen shoulder is unknown. However, several factors can increase the risk.
Shoulder injury or surgery
Frozen shoulder sometimes develops after shoulder injuries, fractures or surgery. Reduced movement during recovery can lead to stiffness and inflammation in the joint capsule.
This is why gentle movement and rehabilitation after shoulder injury can be important when advised by a clinician.
Medical conditions
Certain health conditions increase the likelihood of developing frozen shoulder.
Diabetes is one of the most significant risk factors. People with diabetes are more likely to develop frozen shoulder than the general population, and recovery may sometimes take longer.
Other conditions associated with frozen shoulder include:
- thyroid disorders
- heart disease
- Parkinson’s disease
- stroke
- previous shoulder surgery
Prolonged immobility
Keeping the shoulder still for long periods can lead to stiffness. This may happen after arm injuries, surgery, stroke or medical procedures that limit movement.
Age and sex
Frozen shoulder most commonly affects people between the ages of 40 and 60. It appears to be more common in women than men.
Symptoms of frozen shoulder
The most noticeable symptom is progressive stiffness in the shoulder joint.
Common symptoms include:
- persistent shoulder pain
- difficulty lifting the arm above shoulder height
- pain when reaching behind the back
- limited range of motion
- difficulty reaching across the body
- pain at night
- discomfort when lying on the affected side
- difficulty dressing, washing or driving
The pain usually develops gradually and may worsen before it begins to improve. Stiffness is often the most persistent problem.
When shoulder pain may be something else
Not all shoulder pain is frozen shoulder. Other conditions can cause similar symptoms, including rotator cuff injuries, arthritis, tendon inflammation, shoulder impingement or referred pain from the neck.
Frozen shoulder usually causes restriction in both active movement and passive movement. This means movement is limited even when someone else tries to move the arm for you.
Shoulder pain may be something else if it:
- started suddenly after a fall or injury
- causes obvious deformity
- causes severe weakness
- comes with numbness or tingling down the arm
- is linked with chest pain or shortness of breath
- is associated with fever or feeling very unwell
These symptoms should be assessed promptly.
How frozen shoulder is diagnosed in the UK
Diagnosis usually begins with a GP, physiotherapist or other musculoskeletal clinician.
A clinician will ask about symptoms, medical history, shoulder injuries, diabetes, thyroid problems and how the pain affects daily activities.
A physical examination is then performed to assess range of motion in the shoulder. One key sign of frozen shoulder is restricted movement even when someone else tries to move the arm.
In many cases, scans are not needed to diagnose frozen shoulder. However, X-rays, ultrasound or MRI scans may sometimes be used to rule out other causes of shoulder pain, such as arthritis, tendon tears or other joint problems.
For more detail on imaging, see ultrasound vs CT vs MRI, what an MRI scan shows and how to understand scan results.
Patients may also be referred to physiotherapy, a musculoskeletal clinic or an orthopaedic specialist if symptoms persist. You can learn more in how hospital referrals work in the UK.
Best treatments for frozen shoulder
Frozen shoulder can resolve on its own over time, but treatment can reduce pain, improve function and support recovery.
The right treatment depends on the stage of the condition, pain level, stiffness and how much daily life is affected.
Physiotherapy
Physiotherapy is one of the main treatments for frozen shoulder. Exercises can help maintain mobility and gradually restore movement.
A physiotherapist may recommend:
- gentle stretching exercises
- range-of-motion exercises
- shoulder blade control exercises
- posture advice
- strengthening exercises when pain allows
- advice on daily activities
Exercises should be appropriate for the stage of frozen shoulder. Forcing painful stretches too aggressively can make symptoms worse, especially during the early painful stage.
Pain relief medication
Pain relief medication such as paracetamol or anti-inflammatory medicines may be recommended to manage discomfort.
Reducing pain can make it easier to sleep and perform exercises that improve shoulder mobility.
Anti-inflammatory tablets are not suitable for everyone, including some people with stomach ulcers, kidney disease, heart disease, high blood pressure, asthma triggered by NSAIDs or certain medications. A pharmacist, GP or clinician can advise.
Steroid injections
Corticosteroid injections into the shoulder joint can help reduce inflammation and relieve pain, particularly in the early stages.
These injections are commonly considered when pain is severe, sleep is affected, or physiotherapy is difficult because of pain.
Injections do not instantly cure frozen shoulder, but they can make it easier to move the shoulder and engage with rehabilitation.
Hydrodilatation
Hydrodilatation is a procedure where fluid is injected into the shoulder joint capsule to stretch it and improve movement.
It may be offered through specialist musculoskeletal or orthopaedic services in some parts of the UK. It is not needed for everyone, but it can help selected patients with significant stiffness.
Surgery
Surgery is rarely required for frozen shoulder, but it may be considered if symptoms persist for a long time despite appropriate treatment.
Procedures may involve releasing the tightened capsule to improve movement. This is usually considered only after non-surgical options have been tried.
Most people recover without needing surgery.
Recovery and outlook
Frozen shoulder can take time to resolve. The full course of the condition may last between 12 and 24 months, although recovery can be shorter or longer depending on the person.
The majority of people eventually recover most or all of their shoulder movement, especially with appropriate treatment and consistent exercises.
Recovery can feel slow, and progress may happen in small steps. Patience and a structured rehabilitation plan are important.
How frozen shoulder affects everyday life
During the frozen stage, simple activities can become frustrating and painful.
Many people struggle with:
- getting dressed
- fastening a bra
- putting on a coat
- washing or brushing hair
- reaching high shelves
- driving comfortably
- lifting objects
- sleeping without pain
Adjusting daily activities, using the unaffected arm where possible and avoiding sudden painful movements can help reduce strain during recovery.
Can frozen shoulder be prevented?
Frozen shoulder cannot always be prevented, especially when risk factors such as diabetes or thyroid disease are involved. However, maintaining shoulder movement after injuries or surgery can reduce the risk.
Helpful steps include:
- following rehabilitation advice after shoulder injury or surgery
- avoiding prolonged complete immobility unless advised
- doing gentle stretching when safe
- seeking physiotherapy early after shoulder injuries
- managing diabetes or thyroid conditions well
- asking for advice if shoulder stiffness begins to develop
Related musculoskeletal conditions
Joint problems can overlap. People dealing with shoulder pain may also have issues affecting other parts of the body, such as the spine, wrists, hips or knees.
You may find these related guides helpful:
When to seek medical advice
If shoulder pain lasts longer than a few weeks or limits normal movement, it is worth speaking to a GP, physiotherapist or appropriate healthcare professional.
Seek medical advice if:
- shoulder stiffness is getting worse
- pain is affecting sleep
- you cannot lift your arm normally
- daily activities are becoming difficult
- symptoms are not improving with self-care
- you have diabetes and new shoulder stiffness
- pain follows an injury or fall
Seek urgent advice if shoulder pain is severe after trauma, there is obvious deformity, the arm is weak or numb, or shoulder pain occurs with chest pain, breathlessness, sweating or feeling faint.
If accessing care is difficult, see how to get a GP appointment quickly in the UK.
NHS and private treatment options
NHS care
Frozen shoulder may be managed through GP care, physiotherapy, musculoskeletal services, steroid injection services or orthopaedic referral depending on severity and local pathways.
NHS treatment is usually based on symptoms, function and clinical need.
Private care
Some people choose private physiotherapy, private musculoskeletal assessment, imaging, injections or orthopaedic consultation for faster access or more flexible appointments.
Private costs vary depending on consultations, scans, injections, physiotherapy sessions and any procedures required.
For a broader comparison, read NHS vs private healthcare in the UK.
FAQ: frozen shoulder in the UK
What is frozen shoulder?
Frozen shoulder, or adhesive capsulitis, is a condition where the shoulder capsule becomes tight and stiff, causing pain and restricted movement.
What are the first signs of frozen shoulder?
Early signs often include gradually worsening shoulder pain, night pain and increasing difficulty lifting the arm or reaching behind the back.
What causes frozen shoulder?
The exact cause is often unknown. Risk is higher after shoulder injury or surgery, prolonged immobility, diabetes, thyroid disease, heart disease and in people aged around 40 to 60.
How long does frozen shoulder last?
Frozen shoulder can last 12 to 24 months, sometimes longer. Recovery is usually gradual and may involve painful, stiff and thawing phases.
Does frozen shoulder go away on its own?
It often improves over time, but treatment such as physiotherapy, pain relief or steroid injections can reduce pain and help restore movement.
Is physiotherapy good for frozen shoulder?
Yes. Physiotherapy can help maintain movement, reduce stiffness and support recovery. Exercises should be gentle and matched to the stage of the condition.
Can steroid injections help frozen shoulder?
Steroid injections can reduce pain and inflammation, especially in the early painful stage. They may make it easier to sleep and take part in rehabilitation.
What is hydrodilatation?
Hydrodilatation is a procedure where fluid is injected into the shoulder joint capsule to stretch it and improve movement. It may be offered to selected patients.
Is surgery needed for frozen shoulder?
Surgery is rarely needed. It may be considered if symptoms persist for a long time despite physiotherapy, injections or other non-surgical treatment.
How do I know if shoulder pain is not frozen shoulder?
Pain after a fall, sudden weakness, deformity, numbness, fever, severe pain or chest symptoms may suggest another problem and should be assessed promptly.
Can diabetes cause frozen shoulder?
Diabetes is a strong risk factor for frozen shoulder. People with diabetes are more likely to develop it, and symptoms may sometimes last longer.
Can I work with frozen shoulder?
Many people can continue working with adjustments. Tasks involving overhead reaching, lifting or repetitive shoulder movement may need temporary modification.
Final takeaway
Frozen shoulder can be painful and restrictive, but it is usually temporary. With appropriate treatment, physiotherapy and patience, most people recover good shoulder function over time.
The key is early recognition, staying active within comfortable limits, and following a structured rehabilitation plan that matches the stage of the condition.
If shoulder pain or stiffness is affecting daily life, speaking with a healthcare professional is the best first step towards recovery.
