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Introduction

Shoulder pain is one of the most common reasons people seek orthopaedic care. Two conditions that are frequently confused are frozen shoulder (adhesive capsulitis) and rotator cuff tears.

Both can cause pain and difficulty using the shoulder, but they affect different structures, present differently and often require different treatment approaches.

An accurate diagnosis is important because management depends on identifying the underlying cause of your symptoms.

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At a glance

Feature	Frozen Shoulder	Rotator Cuff Tear
Main problem	Tight, inflamed shoulder capsule	Torn tendon(s) of the rotator cuff
Pain	Severe, especially early	Common, often with overhead activity and at night
Stiffness	Marked	Usually mild unless associated with another condition
Weakness	Mainly due to pain and stiffness	True muscle weakness is common
Age	Common between 40–60 years	More common with ageing or injury
Onset	Gradual	Gradual degeneration or sudden injury
Overhead movement	Very restricted	Often possible but painful or weak

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What is frozen shoulder?

Frozen shoulder occurs when the capsule surrounding the shoulder joint becomes inflamed, thickened and tight.

This results in:

• Progressive pain
• Increasing stiffness
• Difficulty moving the shoulder in all directions

Patients often notice that everyday tasks become difficult, including:

• Washing or combing hair
• Fastening a bra
• Reaching overhead
• Putting on a jacket
• Reaching behind the back

One of the hallmark features is that both active movement (what you can do yourself) and passive movement (what someone else can move for you) are restricted.

Learn more about Frozen Shoulder →

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What is a rotator cuff tear?

The rotator cuff consists of four tendons that help lift and stabilise the shoulder.

A tear may develop gradually through degeneration or occur suddenly after trauma.

Typical symptoms include:

• Pain when lifting the arm
• Pain reaching overhead
• Night pain
• Weakness
• Difficulty lifting objects

Unlike frozen shoulder, overall shoulder movement is often reasonably preserved, although pain and weakness may limit function.

Learn more about Rotator Cuff Tears →

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Key differences

Pain

Frozen shoulder

Pain is often diffuse around the shoulder and may occur even at rest.

It is usually worst during the early inflammatory stage and often disturbs sleep.

Rotator cuff tear

Pain commonly occurs during:

• Lifting
• Reaching
• Throwing
• Overhead activities

Night pain is also common, particularly when lying on the affected shoulder.

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Stiffness

This is often the easiest way to distinguish the two.

Frozen shoulder

Patients lose shoulder movement in almost every direction.

Even when someone else tries to move the arm, the shoulder remains stiff.

Rotator cuff tear

Movement may be painful but the shoulder joint itself usually remains mobile.

A person may be unable to lift the arm because of weakness rather than stiffness.

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Weakness

Frozen shoulder

The muscles remain intact.

Any weakness is usually due to pain or reduced movement.

Rotator cuff tear

Weakness is one of the defining features.

Patients often notice:

• Difficulty lifting objects
• Trouble reaching shelves
• Reduced strength during gym exercises
• Difficulty lifting the arm above shoulder height

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How symptoms begin

Frozen shoulder

Usually develops gradually over weeks or months.

Many patients cannot identify a specific injury.

Rotator cuff tear

May occur:

• after lifting something heavy
• following a fall
• during sport

or gradually through tendon degeneration.

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Can you have both?

Yes.

This is an important point that many patients are unaware of.

A rotator cuff tear and frozen shoulder can occur together.

For example:

• A painful rotator cuff tear may lead to reduced shoulder movement, contributing to secondary stiffness.
• A patient with frozen shoulder may also have an age-related rotator cuff tear that was previously asymptomatic.

This is why a thorough clinical assessment is important rather than relying on symptoms alone.

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How is the diagnosis confirmed?

A diagnosis begins with a detailed consultation and physical examination.

Your specialist will assess:

• Range of motion
• Muscle strength
• Areas of tenderness
• Specific shoulder tests
• Previous injuries and medical history

Imaging may include:

• X-rays
• Musculoskeletal ultrasound
• MRI when appropriate

Not every patient requires an MRI at the first consultation.

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Treatment

Treatment depends on the diagnosis.

Frozen shoulder

Management may include:

• Education and reassurance
• Pain management
• Physiotherapy
• Stretching exercises
• Image-guided injections where appropriate
• Surgery for selected patients with persistent stiffness

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Rotator cuff tear

Treatment depends on:

• Tear size
• Symptoms
• Age
• Activity level
• Functional goals

Options may include:

• Physiotherapy
• Activity modification
• Pain management
• Ultrasound-guided injections where appropriate
• Arthroscopic rotator cuff repair for selected patients

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Frequently Asked Questions

Which condition hurts more?

Both can cause significant pain.

Frozen shoulder often causes severe pain during its early inflammatory phase, while rotator cuff tears commonly produce pain during lifting and at night.

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Can physiotherapy treat both conditions?

Physiotherapy is an important part of treatment for both conditions, but the rehabilitation programme differs according to the diagnosis.

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Should I get an MRI?

Not always.

The need for MRI depends on your clinical assessment. In many cases, the diagnosis can be narrowed with a careful examination and appropriate initial imaging.

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Can shoulder pain go away on its own?

Some patients improve with time and conservative treatment, but persistent pain, weakness or stiffness should be assessed to establish the correct diagnosis and avoid unnecessary delays in treatment.

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When should I see a shoulder specialist?

You should consider specialist assessment if you have:

• Shoulder pain lasting more than 2–4 weeks
• Significant stiffness
• Weakness when lifting the arm
• Pain after a fall or sporting injury
• Night pain affecting sleep
• Difficulty performing everyday activities

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Why choose 360 Orthopaedics?

At 360 Orthopaedics, we focus on accurate diagnosis before recommending treatment.

Many shoulder conditions produce similar symptoms, and distinguishing between frozen shoulder, rotator cuff disease and other disorders requires a careful clinical assessment.

Our approach combines:

• Fellowship-trained expertise in shoulder surgery
• Evidence-based treatment recommendations
• Musculoskeletal ultrasound where appropriate
• Individualised treatment plans based on your goals and lifestyle

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Related pages

Shoulder Pain – Causes, Diagnosis and Treatment

Frozen Shoulder

Rotator Cuff Tear

Shoulder Pain at Night

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Unsure whether your shoulder pain is due to frozen shoulder or a rotator cuff tear?

Many shoulder conditions have overlapping symptoms. A detailed assessment is often the most reliable way to determine the underlying cause and discuss the most appropriate treatment options.

Contact 360 Orthopaedics to arrange a consultation.

Shoulder pain is one of the most common musculoskeletal complaints affecting adults of all ages. It may develop gradually through overuse or degeneration, or occur suddenly following a sporting injury or fall.

Although many episodes of shoulder pain improve with appropriate rest and rehabilitation, persistent pain, weakness or loss of movement may indicate an underlying shoulder condition that requires specialist assessment.

At 360 Orthopaedics, we provide evidence-based assessment and treatment for shoulder disorders, with an emphasis on accurate diagnosis and individualised care.

For a full overview of shoulder conditions, visit Shoulder Specialist Singapore

Dr Puah is regularly invited to teach shoulder surgery internationally

Specialist Care for Shoulder Pain in Singapore

Dr Puah is an orthopaedic surgeon specialising in shoulder, elbow and sports injuries. He provides personalised care tailored to each patient’s condition and activity level.

Consultations are available at Mount Elizabeth Novena.

If you are experiencing shoulder pain that is affecting your daily life or sports, early assessment can help guide appropriate treatment.

Book a consultation or contact the clinic to discuss your condition.

Why Choose Dr Puah Ken Lee

• Specialist in shoulder, elbow and sports injuries
• Fellowship-trained in advanced arthroscopic techniques
• Focus on evidence-based, patient-specific treatment
• Practising at Mount Elizabeth Novena

Book a Consultation

Book a consultation or contact the clinic via WhatsApp to get started

Book a consultation at 360 Orthopaedics, Mount Elizabeth Novena

Shoulder conditions are common but treatable. Early diagnosis and appropriate management can improve outcomes and prevent long-term problems.
Dr Puah Ken Lee is an orthopaedic surgeon in Singapore specialising in shoulder, elbow and sports injuries at 360 Orthopaedics, Mount Elizabeth Novena. Patients with persistent shoulder symptoms are encouraged to seek specialist evaluation.