Frozen shoulder can be frustrating because it often does not behave like an ordinary shoulder strain.

The shoulder may become:

• Painful
• Increasingly stiff
• Difficult to lift overhead
• Difficult to reach behind your back
• Painful at night
• Hard to use for dressing or washing your hair

And unlike a simple muscle injury, frozen shoulder can persist for months.

The good news is:

Most frozen shoulders can be treated without surgery.

Treatment usually focuses on:

• Controlling pain
• Preserving or restoring movement
• Gradually improving function
• Adjusting treatment according to the stage of the condition

Mayo Clinic notes that most frozen shoulders improve over time and that treatment commonly includes range-of-motion exercises, physiotherapy and pain management.

What Is Frozen Shoulder?

Frozen shoulder is also called:

Adhesive capsulitis

It develops when the capsule surrounding the shoulder joint becomes thickened and tight.

This leads to:

• Pain
• Progressive stiffness
• Reduced shoulder movement

A key feature is that both active and passive movement become restricted.

That means:

• You cannot move the shoulder normally yourself
• Someone examining you also cannot move the shoulder through its normal range

Mayo Clinic identifies this restriction of both active and passive movement as an important feature of frozen shoulder.

How Is Frozen Shoulder Different From a Rotator Cuff Problem?

Both conditions can cause:

• Shoulder pain
• Night pain
• Difficulty lifting the arm
• Difficulty reaching behind your back

But one important distinction is:

Frozen shoulder causes genuine stiffness.

With many rotator cuff problems, your own movement may be limited by pain or weakness, but someone else may still be able to move the shoulder farther.

With frozen shoulder, passive movement is also restricted.

What Are the Stages of Frozen Shoulder?

Frozen shoulder often progresses through several phases.

The exact duration varies considerably between people.

Stage 1: The Painful or “Freezing” Phase

During this phase:

• Pain increases
• Night pain may become severe
• Movement gradually becomes more restricted

This is often the most painful stage.

Trying to aggressively force the shoulder through painful ranges during this period may simply aggravate symptoms.

Stage 2: The “Frozen” Phase

Pain may begin to settle somewhat, but:

• Stiffness remains
• Reaching becomes difficult
• Dressing can be challenging
• Overhead movement remains restricted

At this stage, restoring movement may become a greater focus.

Stage 3: The “Thawing” Phase

Movement gradually starts to improve.

Rehabilitation can focus increasingly on:

• Restoring range
• Strengthening
• Returning to normal activities

Mayo Clinic describes frozen shoulder as progressing through painful, stiff and recovery phases, with treatment changing according to symptoms and stage.

How Long Does Frozen Shoulder Last?

Unfortunately, frozen shoulder can take time.

The NHS notes that it may take months or sometimes years to fully improve.

However, this does not mean that nothing can be done.

Treatment aims to:

• Reduce pain
• Maintain useful movement
• Prevent unnecessary loss of function
• Gradually restore shoulder mobility

Does Frozen Shoulder Always Get Better by Itself?

Many cases improve over time.

But “wait and see” may not be ideal if:

• Pain is severe
• Sleep is badly affected
• You cannot work normally
• Movement is rapidly decreasing
• You are struggling with daily activities

Treatment can help make the condition more manageable while recovery takes place.

What Is the Best Treatment for Frozen Shoulder?

There is no single treatment that is best for every stage.

Treatment may include:

• Pain relief
• Gentle movement
• Physiotherapy
• Steroid injection
• Hydrodilatation
• Less commonly, manipulation or surgery

Mayo Clinic describes pain control and preservation of shoulder movement as the main goals of treatment.

Should I Keep Moving the Shoulder?

Usually, yes.

Keeping the shoulder completely still can worsen stiffness.

The NHS recommends continuing gentle shoulder movement rather than immobilising it completely.

However:

Gentle movement does not mean forcing aggressively through severe pain.

The amount of stretching should match the stage and irritability of the shoulder.

Should I Stretch a Frozen Shoulder Aggressively?

Not necessarily.

This is an important point.

During the highly painful phase, forcing the shoulder aggressively may cause:

• Significant pain
• Worse night symptoms
• Increased irritation

The goal is usually controlled, progressive movement rather than trying to “break through” the stiffness.

The NHS specifically advises against making up strenuous shoulder exercises when frozen shoulder is painful.

Can Physiotherapy Help Frozen Shoulder?

Yes.

Physiotherapy can help:

• Maintain movement
• Restore range gradually
• Reduce stiffness
• Improve strength
• Return to daily activity

Mayo Clinic recommends range-of-motion exercises, while the NHS notes that physiotherapy commonly includes stretching, strengthening and posture advice.

What Should Physiotherapy Focus On?

The focus should change as the shoulder changes.

During the Painful Phase

The emphasis may be more on:

• Gentle movement
• Pain control
• Avoiding major flare-ups
• Maintaining as much range as comfortably possible

During the Stiffer Phase

Treatment can progressively include:

• Range-of-motion exercises
• Joint mobility work
• Functional reaching

During Recovery

The programme may increasingly include:

• Strengthening
• Rotator cuff work
• Shoulder-blade strengthening
• Return to normal activity

How Long Should I Try Physiotherapy?

There is no fixed number of sessions.

The NHS notes that physiotherapy for frozen shoulder commonly lasts at least several weeks, with the exact duration depending on progress.

More important than counting sessions is asking:

• Is night pain improving?
• Is movement increasing?
• Can you reach farther?
• Can you dress more easily?
• Is function improving?

What if Physiotherapy Is Making My Frozen Shoulder Worse?

The rehabilitation programme may need to be adjusted.

A small amount of discomfort can occur.

But if every session results in:

• Severe night pain
• Several days of major worsening
• Increased stiffness

the programme may be too aggressive for the current stage.

Frozen shoulder treatment should not simply mean forcing the shoulder harder.

What if Physiotherapy Is Not Helping?

If there has been little progress, reassessment may be worthwhile.

Questions include:

• Is this definitely frozen shoulder?
• Is there a rotator cuff tear?
• Is arthritis present?
• Is another shoulder problem contributing?
• Would an injection help?
• Would imaging change the diagnosis or treatment?

Mayo Clinic notes that imaging such as X-ray, ultrasound or MRI may be used when another condition needs to be excluded.

Can Painkillers Help?

Yes, where medically appropriate.

Pain relief may allow you to:

• Sleep better
• Move the shoulder more comfortably
• Participate in rehabilitation

Mayo Clinic and the NHS both include pain-relieving medications among common treatments.

Medication should be selected according to your individual health situation.

Can a Steroid Injection Help Frozen Shoulder?

Yes, in selected patients.

A corticosteroid injection into the shoulder joint may:

• Reduce pain
• Improve movement
• Make rehabilitation easier

Mayo Clinic notes that steroid injections can help lessen pain and improve shoulder movement, particularly when used earlier in the course of frozen shoulder.

Does a Steroid Injection Cure Frozen Shoulder?

Not necessarily.

Its main role is often to reduce inflammation and pain.

That can make it easier to:

• Sleep
• Move the shoulder
• Participate in physiotherapy

The underlying stiffness may still take time to recover.

What Is Hydrodilatation?

Hydrodilatation involves injecting fluid into the shoulder joint to expand the tight joint capsule.

It may be combined with a steroid injection.

Mayo Clinic describes hydrodilatation as a procedure intended to stretch the capsule and improve shoulder movement.

It may be considered when symptoms remain substantial despite simpler treatment.

Does Hydrodilatation Mean Surgery?

No.

Hydrodilatation is a non-surgical procedure.

It is usually performed using imaging guidance.

Whether it is appropriate depends on:

• Stage of frozen shoulder
• Severity
• Response to previous treatment
• Individual medical factors

What About Manipulation Under Anaesthesia?

This is a more invasive option.

The patient is anaesthetised, and the shoulder is moved through its range to loosen the tight capsule.

Mayo Clinic lists manipulation under anaesthesia as one option for serious or persistent cases.

It is not usually the first treatment.

Does Frozen Shoulder Need Surgery?

Usually not.

Mayo Clinic notes that surgery for frozen shoulder is rare.

Surgery may be considered when:

• Symptoms remain severe
• Movement remains markedly restricted
• Appropriate non-surgical treatments have failed

The operation is usually arthroscopic and aims to release tight scar tissue around the shoulder.

Can Frozen Shoulder Be Treated Without Any Injection?

Yes.

Many patients are managed with:

• Pain relief
• Physiotherapy
• Gentle exercises
• Activity modification
• Time

An injection is an option, not an automatic requirement.

Does Frozen Shoulder Need MRI?

Usually not in a classic presentation.

Frozen shoulder is mainly diagnosed from:

• Symptoms
• Active range of movement
• Passive range of movement

Mayo Clinic notes that imaging is generally used to rule out other conditions rather than being required to diagnose every case.

When Might MRI Be Useful?

MRI may become more useful when:

• The diagnosis is uncertain
• Significant weakness is present
• A rotator cuff tear is suspected
• Symptoms followed trauma
• The shoulder is not behaving as expected
• Treatment is not working

The goal is not to “prove” frozen shoulder on MRI.

The goal is often to check whether another structural problem is contributing.

Should I Have an X-Ray?

An X-ray can be useful if the doctor wants to exclude:

• Significant arthritis
• Fracture
• Bone abnormalities

Frozen shoulder itself may occur even when the X-ray appears relatively normal.

Can Ultrasound Help?

Ultrasound may be useful when the doctor wants to assess:

• Rotator cuff tendons
• Biceps tendon
• Bursa
• Other soft tissues

This can be helpful when the diagnosis is uncertain.

Frozen Shoulder vs Rotator Cuff Tear: Why Does the Difference Matter?

Because treatment can differ.

A patient with:

• Significant weakness after trauma

may need earlier evaluation for a tear.

A patient with:

• Gradual pain
• Progressive stiffness
• Restricted passive movement

may be more consistent with frozen shoulder.

Treating every painful shoulder with the same exercise programme can miss these differences.

Why Is Frozen Shoulder So Painful at Night?

Night pain is common, particularly during the early phase.

The NHS notes that frozen shoulder pain may be worse at night and can interfere with sleep.

Practical strategies may include:

• Supporting the arm with a pillow
• Avoiding direct pressure on the painful shoulder
• Using appropriate pain relief
• Adjusting sleeping position

Should I Sleep on the Frozen Shoulder?

If lying directly on the affected shoulder clearly increases pain, temporarily avoiding that position is reasonable.

You may find it more comfortable to:

• Sleep on your back
• Sleep on the opposite side
• Support the affected arm with a pillow

Who Is More Likely to Develop Frozen Shoulder?

Frozen shoulder can occur without an obvious cause.

It is also more commonly associated with:

• Previous shoulder injury
• Shoulder surgery
• Periods of reduced shoulder movement
• Diabetes

The NHS identifies diabetes and prolonged reduced arm movement after injury or surgery as recognised associations.

Can Frozen Shoulder Happen After Shoulder Surgery?

Yes.

If the shoulder remains relatively immobile after:

• Surgery
• Injury
• Fracture

the risk can increase.

This is one reason appropriate rehabilitation after shoulder injuries is important.

Can Frozen Shoulder Affect Both Shoulders?

Yes, although often at different times.

Having frozen shoulder once can increase concern if similar symptoms later begin in the opposite shoulder.

What if My Shoulder Is Suddenly Weak Rather Than Just Stiff?

That deserves reassessment.

Marked weakness may suggest:

• Rotator cuff injury
• Nerve-related problem
• Another diagnosis

Frozen shoulder primarily produces stiffness, although pain and disuse can make the arm feel weak.

When Should I See a Doctor?

Arrange an assessment if:

• Shoulder stiffness is not improving
• Night pain is severe
• You cannot raise your arm normally
• You cannot reach behind your back
• Daily activities are becoming difficult
• Physiotherapy is not helping
• You are unsure whether it is truly frozen shoulder

The NHS recommends medical review when shoulder pain and stiffness persist or make arm movement difficult.

When Is Shoulder Pain More Urgent?

Seek prompt medical attention if:

• Symptoms followed significant trauma
• The shoulder looks deformed
• You suddenly cannot lift the arm
• Major weakness developed suddenly
• There is severe swelling
• You have fever with a hot, swollen shoulder

These symptoms are not typical of uncomplicated frozen shoulder.

How Much Does a Shoulder MRI Cost in Singapore?

If MRI is medically appropriate because the diagnosis is uncertain or another shoulder problem needs to be excluded, many standard shoulder MRI examinations arranged through The Pain Relief Clinic are approximately:

S$1,000

This generally includes:

• MRI examination
• MRI images
• Formal radiologist’s report

Eligible outpatient diagnostic scans may qualify for:

Up to S$600 per patient per year from MediSave

subject to prevailing requirements and the patient’s remaining annual limit.

Singapore’s Ministry of Health confirms that the MediSave outpatient scan limit increased from S$300 to S$600 from 1 January 2026.

Current MOH guidance states that eligible outpatient scans used for diagnosis or treatment of a medical condition may qualify for up to S$600 per patient per year.

How Quickly Can a Shoulder MRI Be Arranged?

When MRI is medically indicated, The Pain Relief Clinic can often arrange shoulder imaging:

Within one working day

subject to:

• MRI safety screening
• Correct imaging protocol
• Appointment availability

Frequently Asked Questions About Frozen Shoulder Treatment Without Surgery

Can frozen shoulder get better without surgery?

Yes. Most frozen shoulders are managed without surgery, using pain control, exercises, physiotherapy and sometimes injections or hydrodilatation.

How long does frozen shoulder take to recover?

Recovery can take months and sometimes longer. The NHS notes that frozen shoulder can persist for months or years before fully resolving.

Should I stretch frozen shoulder hard?

Not necessarily. Aggressive painful exercise can worsen symptoms, particularly during the painful phase. Gentle progressive movement is usually more appropriate.

Can physiotherapy help?

Yes. Physiotherapy can help restore movement and later strengthen the shoulder.

Can a steroid injection help?

Yes, particularly for pain and movement in selected patients, especially earlier in the condition.

What is hydrodilatation?

It is a non-surgical procedure in which fluid is injected into the shoulder joint to stretch the tight capsule and improve movement.

Do I need an MRI?

Usually not for a classic frozen shoulder. MRI becomes more useful when the diagnosis is uncertain or another shoulder condition needs to be excluded.

Does frozen shoulder usually need surgery?

No. Surgery is rarely required.

Want to Treat Frozen Shoulder Without Surgery?

If your shoulder has become progressively painful and stiff, the first step is confirming whether the problem is truly frozen shoulder or another condition with similar symptoms.

At The Pain Relief Clinic, we can assess:

• Active shoulder movement
• Passive shoulder movement
• Whether the pattern fits frozen shoulder
• Whether a rotator cuff problem is also possible
• Whether X-ray, ultrasound, MRI or no imaging is most appropriate
• Whether physiotherapy should focus more on pain control, mobility or strengthening
• Whether injection or other non-surgical treatment may be considered
• Whether specialist referral is actually necessary

Frozen shoulder assessment through The Pain Relief Clinic

• Medical assessment by a licensed medical doctor
• In-house physiotherapy
• Stage-appropriate rehabilitation
• Non-surgical treatment where appropriate
• Fast access to X-ray, ultrasound or MRI when indicated
• Shoulder MRI approximately S$1,000 for many standard examinations
• Up to S$600 MediSave for eligible outpatient diagnostic scans
• Formal radiologist’s report
• Specialist referral when appropriate

Arrange a Frozen Shoulder Assessment

The Pain Relief Clinic

Call / WhatsApp: +65 9068 9605

If shoulder pain and stiffness are making it difficult to sleep, dress, reach overhead or reach behind your back, contact us for an assessment and a practical non-surgical treatment plan.

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References

1. Mayo Clinic — Frozen Shoulder: Diagnosis and Treatment.
2. Mayo Clinic Healthcare — Frozen Shoulder Treatment.
3. NHS — Frozen Shoulder.
4. Singapore Ministry of Health — Outpatient Care.
5. Singapore Ministry of Health — S$600 Annual MediSave Withdrawal Limit for Outpatient CT and MRI Scans, 6 August 2026.

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Important Medical Information

This article provides general educational information and does not replace an individual medical consultation.

Frozen shoulder commonly causes pain and restriction of both active and passive shoulder movement. Other conditions, including rotator cuff tears, arthritis and nerve-related problems, can sometimes produce overlapping symptoms.

Imaging is not required for every case of frozen shoulder. The appropriate investigation depends on symptoms, examination findings, trauma history, strength, treatment response and whether another diagnosis needs to be excluded.

Seek prompt medical attention for significant trauma, visible deformity, sudden major weakness, inability to raise the arm after an injury, severe swelling or a hot swollen shoulder associated with fever.

Reviewed by Dr Terence Tan, Founder of The Pain Relief Clinic — 19 September 2026