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, 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 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 restore movement and reduce pain.
What Is Frozen Shoulder?
Frozen shoulder, also known as adhesive capsulitis, occurs when the connective tissue around the shoulder joint becomes inflamed and thickened. The capsule surrounding the joint tightens, restricting movement and causing pain.
Over time, the shoulder becomes stiff and difficult to move in any direction.
According to the NHS, frozen shoulder develops when the tissue around the shoulder joint becomes inflamed and stiff, limiting movement.
https://www.nhs.uk/conditions/frozen-shoulder/
The condition usually affects only one shoulder at a time, though in some cases it can occur in both shoulders.
The Three Stages of Frozen Shoulder
Frozen shoulder typically progresses through three distinct stages.
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.
2. Frozen Stage
During this stage, pain may begin to improve slightly, but stiffness becomes more severe. Movement is significantly restricted and everyday tasks may be difficult.
Activities such as reaching overhead, dressing, or lifting objects often become challenging.
3. Thawing Stage
In the final stage, shoulder movement gradually improves. Stiffness slowly reduces and normal function returns.
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, but several factors 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.
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 much more likely to develop frozen shoulder than the general population.
Other conditions associated with frozen shoulder include thyroid disorders, heart disease, and Parkinson’s disease.
Prolonged Immobility
Keeping the shoulder still for long periods can lead to stiffness. This sometimes occurs after arm injuries, strokes, or medical procedures that limit movement.
Age and Gender
Frozen shoulder most commonly affects people between the ages of 40 and 60. Women appear to develop the condition more frequently than men.
Symptoms of Frozen Shoulder
The most noticeable symptom is progressive stiffness in the shoulder joint.
People often experience:
Persistent shoulder pain
Difficulty lifting the arm above shoulder height
Pain when reaching behind the back
Limited range of motion
Discomfort during sleep, especially when lying on the affected side
The pain usually develops gradually and may worsen over time before improving.
When Shoulder Pain May Be Something Else
Not all shoulder pain is frozen shoulder. Conditions such as rotator cuff injuries, arthritis, or tendon inflammation can cause similar symptoms.
If shoulder pain appears suddenly after an injury or causes severe weakness in the arm, medical advice should be sought.
How Frozen Shoulder Is Diagnosed in the UK
Diagnosis usually begins with a consultation with a GP.
The doctor will ask about symptoms, medical history, and any recent injuries. A physical examination is then performed to assess the 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 most cases, imaging scans are not necessary. However, X-rays or MRI scans may sometimes be used to rule out other shoulder problems.
Patients may also be referred to physiotherapy or an orthopaedic specialist if symptoms persist.
You can learn more about how the referral system works in the UK in this guide:
https://allhealthandcare.co.uk/resources/how-hospital-referrals-work-in-uk
The Best Treatments for Frozen Shoulder
Although frozen shoulder can resolve on its own over time, treatment can help reduce pain and speed recovery.
Physiotherapy
Physiotherapy is one of the most effective treatments. Exercises help maintain mobility and prevent the shoulder from becoming more stiff.
A physiotherapist will guide patients through gentle stretching and strengthening exercises designed to gradually restore movement.
Pain Relief Medication
Pain relief medication such as paracetamol or anti-inflammatory drugs may be recommended to manage discomfort.
Reducing pain makes it easier to perform exercises that improve shoulder mobility.
Steroid Injections
Corticosteroid injections into the shoulder joint can help reduce inflammation and relieve pain, particularly in the early stages.
These injections are commonly used when pain is severe or interfering with sleep.
Hydrodilatation
In some cases, doctors may recommend hydrodilatation, a procedure where fluid is injected into the joint capsule to stretch it and improve movement.
This treatment is sometimes offered through specialist clinics in the UK.
Surgery
Surgery is rarely required for frozen shoulder but may be considered if symptoms persist for a long time despite treatment.
Procedures may involve releasing the tightened capsule to improve movement.
However, 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, though this varies between individuals.
The majority of people eventually recover most or all of their shoulder movement, particularly with physiotherapy and appropriate treatment.
Patience and consistent exercises are key to recovery.
How Frozen Shoulder Affects Everyday Life
During the frozen stage, simple activities can become frustrating.
Many people struggle with:
Getting dressed
Washing hair
Reaching high shelves
Driving comfortably
Sleeping without pain
Adjusting daily activities and using the unaffected arm when possible can help reduce strain during recovery.
Preventing Frozen Shoulder
While frozen shoulder cannot always be prevented, maintaining shoulder movement after injuries or surgery can reduce the risk.
Gentle stretching and regular exercise help maintain flexibility in the joint.
Seeking physiotherapy early after shoulder injuries may also prevent stiffness from developing.
Related Musculoskeletal Conditions
Joint problems often occur together. For example, people dealing with chronic shoulder pain may also experience issues affecting other parts of the body, such as the spine or knees.
You may find these related guides helpful:
https://allhealthandcare.co.uk/resources/lower-back-pain-the-complete-guide
https://allhealthandcare.co.uk/resources/knee-pain-causes-diagnosis-treatment-in-the-uk
https://allhealthandcare.co.uk/resources/sciatica-causes-symptoms-and-the-best-treatments-in-the-uk
Understanding how different joints interact can help prevent long-term musculoskeletal problems.
When to Seek Medical Advice
If shoulder pain lasts longer than a few weeks or limits normal movement, it is worth consulting a GP.
Early diagnosis and treatment can prevent worsening stiffness and help speed recovery.
If pain is severe, worsens suddenly, or follows a traumatic injury, medical assessment should be sought promptly.
Final Thoughts
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.
If shoulder pain is affecting your daily life, speaking with a healthcare professional is the first step toward recovery.
