If you have already spent several weeks or months doing physiotherapy for lower back pain but are still struggling with sitting, walking, sleeping, bending, lifting or exercise, it is reasonable to ask:

Why am I not getting better?

Physiotherapy is an important treatment for many back problems.

But when symptoms are not improving as expected, the answer is not always simply:

“Do more exercises.”

Sometimes the programme needs to change.

Sometimes the original diagnosis needs to be reconsidered.

And sometimes further investigation can provide useful information about what may be contributing to the pain.

The most sensible next step is usually reassessment rather than automatically repeating exactly the same treatment indefinitely.

How Long Should Physiotherapy Take to Help Back Pain?

There is no single timeline.

Many episodes of uncomplicated back pain improve within a few weeks, although some people have symptoms that last longer or recur. Mayo Clinic notes that most back pain improves over time, while persistent pain can continue for months in some people.

Recovery depends on factors such as:

• The underlying problem
• How long you have had pain
• Whether pain travels into the leg
• Strength and mobility
• Work demands
• Previous episodes
• General health
• Exercise programme
• How the back responds to loading

The important question is not simply:

“How many sessions have I completed?”

It is:

Is there a meaningful trend toward improvement?

For example:

• Can you walk farther?
• Can you sit longer?
• Is sleep improving?
• Is bending easier?
• Are pain flares less frequent?
• Can you work more comfortably?
• Is leg pain reducing?

If there has been little or no meaningful improvement, reassessment may be appropriate.

Why Might Physiotherapy Not Be Working?

There are several possible reasons.

1. The Diagnosis May Need to Be Reconsidered

Back pain can arise from many different structures and mechanisms.

Possible contributors include:

• Muscles
• Ligaments
• Spinal joints
• Intervertebral discs
• Nerve roots
• Degenerative spinal changes
• Other medical conditions

Mayo Clinic notes that back pain can have mechanical, structural, inflammatory and other medical causes.

If treatment is being directed at the wrong problem, progress may be limited.

2. The Exercise Programme May Be Too Aggressive

If every session produces a major flare that lasts several days, the programme may be exceeding what your back currently tolerates.

Exercises can sometimes be adjusted by changing:

• Resistance
• Range of motion
• Number of repetitions
• Frequency
• Exercise selection
• Recovery time

The goal is to progressively increase capacity rather than repeatedly provoke severe symptoms.

3. The Programme May Not Be Challenging Enough

The opposite can also happen.

If the programme never progresses beyond very light exercises, it may not prepare the back for:

• Lifting
• Long periods of standing
• Work demands
• Sport
• Carrying children
• Travel
• Longer walks

Effective rehabilitation often needs gradual progression.

4. The Problem May Involve a Nerve

If back pain is accompanied by:

• Pain travelling into the buttock or leg
• Tingling
• Numbness
• Weakness

a nerve-related problem such as sciatica may need to be considered.

Mayo Clinic describes sciatica as pain that can travel from the lower back into the buttock, thigh and calf and may occur with numbness, tingling or muscle weakness.

This may require a different assessment and treatment strategy from uncomplicated muscular back pain.

5. The Problem May Need More Time

Some back conditions simply recover slowly.

Pain can remain even while function is gradually improving.

This is why progress should be measured using more than pain intensity alone.

Useful measures include:

• Walking distance
• Sitting tolerance
• Work capacity
• Strength
• Sleep
• Ability to bend or lift

If these are improving, treatment may still be working.

6. There May Be a Structural Problem Worth Investigating

Most uncomplicated lower-back pain does not require immediate imaging.

However, imaging can become more useful when symptoms are persistent or worsening despite appropriate treatment.

RadiologyInfo states that lumbar MRI is usually appropriate for people with persistent or worsening symptoms despite medical management, particularly when imaging may influence the next treatment decision.

When Should the Diagnosis Be Reconsidered?

Reassessment is sensible when:

• There has been little or no improvement
• Pain is progressively worsening
• Pain now spreads into the leg
• Numbness or tingling has appeared
• Weakness has developed
• Walking is becoming more difficult
• Sleep is significantly affected
• The pain pattern has changed
• The same treatment is being repeated without progress

A revised diagnosis may lead to a different rehabilitation programme, further imaging or another treatment approach.

What if My Physiotherapist Says I Just Need More Time?

Sometimes that may be correct.

But a reasonable plan should still include measurable goals.

Useful questions include:

• What diagnosis are we treating?
• What improvement should I expect?
• What measurable changes have occurred?
• What should happen over the next few weeks?
• At what point should the diagnosis be reconsidered?
• When would imaging become appropriate?

The treatment plan should have a rationale rather than simply continuing indefinitely.

Should Exercise Hurt?

Some discomfort can occur during rehabilitation.

That does not necessarily mean damage is occurring.

However, there is a difference between:

temporary manageable discomfort

and:

significant worsening that repeatedly lasts for days

If exercise consistently causes:

• Severe pain
• Increasing leg pain
• Numbness
• Tingling
• Weakness
• Reduced walking ability

the programme should be reassessed.

What if Back Pain Is Worse After Every Physiotherapy Session?

A temporary flare can happen.

But repeated substantial deterioration after every session suggests that something may need to change.

Possible reasons include:

• Too much load
• Incorrect exercise selection
• Too much range of motion
• Inadequate recovery
• An incomplete diagnosis

The goal of rehabilitation should be improving overall function over time, not repeatedly creating major setbacks.

Should I Stop Physiotherapy?

Not necessarily.

The answer may be to:

• Modify the exercises
• Change the progression
• Reassess the diagnosis
• Add another treatment approach
• Obtain further investigation

Physiotherapy can remain valuable even when the original programme needs modification.

Should I See a Doctor?

It can be reasonable if your back pain has not improved after several weeks, is interfering with daily activities, or is developing neurological symptoms.

The NHS advises medical assessment if back pain does not improve after treating it for a few weeks or if it is stopping normal day-to-day activities.

Mayo Clinic similarly recommends medical review for pain lasting more than a few weeks, pain spreading into the legs, or pain associated with numbness, tingling or weakness.

Should I Get an X-Ray?

Not automatically.

X-rays can be useful when a doctor wants to assess:

• Bone alignment
• Fracture
• Degenerative changes
• Certain structural abnormalities

However, X-rays do not provide detailed information about:

• Intervertebral discs
• Nerve roots
• Spinal canal
• Many surrounding soft tissues

The investigation should match the clinical question.

Should I Get an MRI if Physiotherapy Is Not Working?

Not automatically.

But MRI becomes more useful when:

• Symptoms persist despite appropriate treatment
• Symptoms are getting worse
• Pain travels into the leg
• Numbness or tingling is present
• Weakness develops
• Surgery or another procedure is being considered
• The diagnosis remains uncertain
• Imaging is likely to change treatment

RadiologyInfo notes that most uncomplicated low-back pain does not require imaging, but MRI is usually appropriate when symptoms persist or worsen despite medical management.

What Can a Lumbar MRI Show?

Lumbar spine MRI can provide detailed information about:

• Intervertebral discs
• Nerve roots
• Spinal canal
• Vertebrae
• Facet joints
• Surrounding soft tissues

It may help identify findings such as:

• Disc herniation
• Spinal narrowing
• Nerve-root compression
• Other structural changes

MRI does not use ionising radiation.

If MRI Shows a Disc Bulge, Does That Explain the Pain?

Not automatically.

Disc bulges and other degenerative changes can appear on imaging even in people who do not have significant symptoms.

Mayo Clinic specifically notes that bulging or ruptured discs may be present without causing back pain.

This is why MRI findings should be interpreted alongside:

• Pain pattern
• Physical examination
• Neurological findings
• Functional limitations

The MRI report should not be treated in isolation.

Does a Disc Bulge Mean I Need Surgery?

No.

Many disc-related problems can be managed without surgery.

Mayo Clinic notes that surgery is rarely required for back pain overall and is generally considered when other treatments have not helped in appropriate cases.

Treatment may include:

• Activity modification
• Physiotherapy
• Exercise rehabilitation
• Medication where appropriate
• Other non-surgical treatments

The MRI finding alone does not determine treatment.

What if My MRI Is Normal but I Still Have Back Pain?

A normal MRI does not mean that the pain is imaginary.

Mayo Clinic notes that back pain can occur without a specific cause that is visible on imaging.

Pain can still involve:

• Muscles
• Joints
• Movement and loading
• Nerves
• Other musculoskeletal factors

Treatment should therefore be based on the whole clinical picture.

Back Pain With Sciatica Not Improving After Physiotherapy

If pain is travelling down one leg, the problem may involve a spinal nerve.

Possible symptoms include:

• Shooting pain
• Burning pain
• Tingling
• Numbness
• Weakness

If these symptoms are persistent or worsening, reassessment becomes more important.

MRI may sometimes help determine whether a disc or another structure is affecting a nerve.

Lower Back Pain After Sleeping Not Improving

Morning stiffness can occur with mechanical back pain.

However, persistent morning pain may justify reassessment if it:

• Lasts for weeks or months
• Is getting worse
• Repeatedly wakes you at night
• Is associated with other symptoms
• Does not respond to appropriate treatment

The pattern matters.

Severe Back Pain Still Not Improving

Pain that remains severe despite several weeks of appropriate treatment deserves reassessment.

Mayo Clinic advises medical review for severe back pain that does not improve, especially when accompanied by leg symptoms, numbness, tingling or weakness.

Should I Try Another Physiotherapist?

Possibly, but changing provider is not automatically the solution.

Before doing so, consider asking:

• Has the diagnosis been reassessed?
• What objective progress has occurred?
• Why is the current treatment being continued?
• What changes could be made?
• Should imaging be considered?

Sometimes a second opinion can be useful when the diagnosis or treatment strategy remains unclear.

Should I Try Spinal Decompression?

Spinal decompression or traction may be considered in selected patients depending on the diagnosis and clinical findings.

It is not appropriate for every form of back pain.

Treatment should follow assessment rather than simply applying the same modality to everyone.

Should I Try Shockwave Therapy?

Shockwave therapy is useful for selected musculoskeletal conditions, particularly certain tendon-related problems.

It is not automatically an appropriate treatment for spinal pain.

The painful structure and diagnosis should guide the treatment choice.

Should I Rest Until the Pain Goes Away?

Prolonged bed rest is generally not recommended for uncomplicated back pain.

The NHS advises people with back pain to remain active and specifically advises against staying in bed for long periods.

Mayo Clinic similarly recommends continuing light activity where possible rather than prolonged bed rest.

Activity may need to be modified temporarily, but complete inactivity can contribute to stiffness and reduced conditioning.

How Much Does a Lumbar MRI Cost in Singapore?

For many patients arranging a lumbar spine MRI through The Pain Relief Clinic, the current price is approximately:

S$1,000

This generally includes:

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

Eligible outpatient scans may qualify for up to S$600 per patient per year from MediSave, subject to prevailing rules and remaining limits.

How Quickly Can I Get a Lumbar MRI?

When MRI is medically appropriate, The Pain Relief Clinic can often arrange a lumbar spine MRI:

Within one working day

subject to:

• MRI safety screening
• Appropriate imaging protocol
• Appointment availability

When Should I Seek Urgent Medical Attention?

Do not simply continue routine physiotherapy if back pain is accompanied by:

• New bladder or bowel problems
• Numbness around the genital or saddle area
• Weakness or numbness in both legs
• Rapidly worsening neurological symptoms
• Severe pain after major trauma
• Fever with significant back pain

The NHS advises emergency assessment for back pain with bilateral leg neurological symptoms, saddle-area numbness or changes in bladder or bowel function.

Frequently Asked Questions About Back Pain Not Improving After Physiotherapy

How long should I try physiotherapy?

There is no fixed duration. The important question is whether pain, function and activity tolerance are showing a meaningful trend toward improvement.

Why might physiotherapy not be working?

Possible reasons include an incomplete diagnosis, inappropriate loading, inadequate progression, nerve involvement, structural problems or simply a condition that requires more time.

Should I get an MRI if physiotherapy has not worked?

Not automatically. MRI may become more appropriate when symptoms persist or worsen despite appropriate management or when neurological symptoms or diagnostic uncertainty are present.

Can MRI show a slipped disc?

Yes. MRI can provide detailed information about spinal discs and nearby nerve roots.

Does a disc bulge always cause back pain?

No. Disc abnormalities can be present without symptoms.

Does failed physiotherapy mean I need surgery?

No. Many persistent back problems can still be managed non-surgically.

Should I keep doing exercises that make the pain worse?

Persistent significant worsening suggests that the programme should be reassessed rather than simply continued unchanged.

How much does a lumbar MRI cost?

A lumbar spine MRI arranged through The Pain Relief Clinic is currently approximately S$1,000, including images and a formal radiologist’s report.

Back Pain Still Not Improving Despite Physiotherapy?

If you have already invested weeks or months in physiotherapy but your back pain is still affecting walking, sitting, work, sleep or exercise, another assessment may help determine why progress has stalled.

At The Pain Relief Clinic, we can assess:

• Whether the original diagnosis still fits
• Whether nerve symptoms are present
• Whether rehabilitation should be modified
• Whether X-ray, MRI or another investigation may be useful
• Whether another non-surgical treatment approach is appropriate
• Whether specialist referral is necessary

Medical assessment and in-house physiotherapy are available within the same practice, allowing the diagnosis, imaging findings and rehabilitation plan to be considered together.

When MRI is medically appropriate, lumbar imaging can often be arranged within one working day.

Back pain assessment through The Pain Relief Clinic

• Medical assessment by a licensed medical doctor
• In-house physiotherapy
• Fast access to imaging when appropriate
• Lumbar MRI often available within one working day
• Approximately S$1,000 for many lumbar MRI examinations
• Up to S$600 MediSave for eligible outpatient scans
• Formal radiologist’s report
• Non-surgical treatment options where appropriate
• Spinal decompression where clinically appropriate

Arrange a Back Pain Reassessment

The Pain Relief Clinic

Call / WhatsApp: +65 9068 9605

If your back pain has not improved despite physiotherapy, contact us for an assessment of whether the diagnosis, investigation or treatment plan should be reconsidered.

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References

1. NHS — Back Pain, reviewed 5 March 2026.
2. Mayo Clinic — Back Pain: Symptoms and Causes.
3. Mayo Clinic — Back Pain: Diagnosis and Treatment.
4. Mayo Clinic — Sciatica: Symptoms and Causes.
5. RadiologyInfo.org, American College of Radiology and Radiological Society of North America — Appropriateness Criteria: Low Back Pain.

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Important Medical Information

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

Lack of improvement with physiotherapy does not necessarily mean physiotherapy was inappropriate or that MRI, injections or surgery are required. The appropriate next step depends on symptoms, neurological examination, duration, previous treatment, functional limitations and the suspected diagnosis.

MRI is not required for every case of persistent back pain.

Seek urgent medical attention for new bladder or bowel dysfunction, saddle-area numbness, rapidly worsening weakness, severe neurological symptoms, fever with significant back pain, or symptoms following major trauma.

Reviewed by Dr Terence Tan, Founder of The Pain Relief Clinic — 18 September 2026