Sciatica Is a Symptom — MRI Helps Find the Cause
Sciatica refers to pain that travels from the lower back down the buttock and leg. While it is often blamed on a slipped disc, there are multiple possible causes, and MRI is usually required to identify where and why the nerve is being compressed.
Below are the most common scenarios where patients in Singapore end up needing an MRI for sciatica.
1. Leg Pain That Is Worse Than Back Pain
When leg pain:
Shoots down the thigh or calf
Feels sharp, burning, or electric
Is more severe than the back pain itself
MRI helps determine whether a disc, bone, or narrowed canal is pressing on the nerve.
2. Persistent Sciatic Pain Lasting More Than a Few Weeks
If sciatica:
Persists beyond 4–6 weeks
Keeps recurring
Does not settle with rest or medication
MRI is often used to look for ongoing nerve irritation rather than continuing trial-and-error treatment.
3. Numbness or Tingling in the Leg or Foot
Symptoms such as:
Pins and needles
Reduced sensation
Altered feeling in the foot or toes
suggest nerve involvement, which MRI can localise precisely.
4. Weakness in the Leg or Foot
Difficulty:
Lifting the foot
Standing on toes or heels
Maintaining leg strength
raises concern about significant nerve compression, where imaging clarity becomes important.
5. Normal X-ray but Ongoing Sciatic Symptoms
X-rays may look normal even when:
A disc is compressing a nerve
There is soft tissue or foraminal narrowing
MRI provides detailed views of nerves, discs, and surrounding structures that X-rays cannot show.
6. Sciatica After a Fall or Sudden Movement
A fall, sudden twist, or lifting injury can:
Trigger disc herniation
Worsen an existing spinal issue
MRI helps assess disc injury, inflammation, and nerve contact, especially when symptoms worsen days later.
7. Pain Not Improving Despite Physiotherapy
If physiotherapy:
Only provides short-term relief
Does not improve walking or function
MRI helps explain why recovery has plateaued and whether the nerve remains compressed.
8. When Treatment Decisions Depend on Knowing the Exact Cause
MRI is commonly required before:
Targeted non-invasive treatments
Specialist referral
Deciding whether conservative care is still appropriate
Clear imaging helps avoid delays, unnecessary procedures, and wasted costs.
How Long Does It Take to Get an MRI for Sciatica in Singapore?
Public hospitals:
Non-urgent outpatient MRI appointments may take weeks or more, depending on demand.Private or clinic-based options:
MRI scans are typically arranged much faster.
At The Pain Relief Clinic, MRI scans for sciatica can usually be arranged within one working day, subject to assessment.
How Much Does an MRI for Sciatica Cost?
Public hospitals:
Subsidised and lower cost, but with longer waiting times.Private hospitals / imaging centres:
Higher and often variable pricing.The Pain Relief Clinic:
Clear upfront pricing, typically under S$1,000 for common outpatient lumbar spine MRI scans
Costs explained before proceeding, reducing uncertainty
Do You Need to Travel to Another Location for the MRI?
Many pathways require:
Seeing a doctor at one clinic
Travelling to a separate imaging centre
Returning again for review
At The Pain Relief Clinic:
MRI coordination is handled within the same clinic system
No off-site imaging travel
Faster review and smoother care flow
Payment Options to Know About
Patients at The Pain Relief Clinic may access:
Medisave usage (subject to outpatient diagnostic limits)
Insurance claim support (corporate and personal plans, subject to insurer rules)
Cashless arrangements where applicable
Interest-free instalment plans
Cash and card payments
Quick Comparison
| Factor | Public Hospital | Private Hospital / Centre | The Pain Relief Clinic |
|---|---|---|---|
| Waiting time | Weeks or more | Days | Within 1 working day |
| Pricing clarity | Subsidised | Variable | Clear, under S$1,000 |
| Off-site imaging | No | Sometimes | No |
| Payment flexibility | Limited | Moderate | High |
Final Takeaway
Sciatica is often a sign of nerve compression, and MRI is the most reliable way to identify the cause.
For patients who want:
Fast clarity
Transparent pricing
Minimal logistical hassle
Flexible payment options
The Pain Relief Clinic offers a practical MRI pathway suited to real-world needs in Singapore.


