Cervical & Lumbar Disc Herniation

The spine is made up of bones called vertebrae, separated by intervertebral discs that act as shock absorbers and allow movement. Each disc has a tough outer layer (annulus fibrosus) and a gel-like inner core (nucleus pulposus).

A disc herniation happens when the inner core pushes through a weakened part of the outer layer. This can irritate or compress nearby nerves, leading to pain, numbness or weakness. Herniations can occur anywhere in the spine, but most commonly affect:

• Cervical spine (neck) — may cause pain, numbness or weakness radiating to the shoulders, arms or hands.
• Lumbar spine (lower back) — may cause pain, numbness or weakness radiating to the buttocks, legs or feet.

What are the stages of disc herniation?

The conditions are classified by severity and extent of tissue involvement, such as:

• Disc bulge/protrusion — mild displacement without nerve compression
• Disc extrusion — inner disc material breaks through the outer layer but remains attached
• Disc sequestration — displaced fragment separates and may compress nearby nerves
• Degenerative disc disease — age-related thinning with possible bulging

What causes disc herniation?

Disc herniation occurs through mechanisms that stress or weaken the disc structure, including:

• Degenerative changes — over time, the disc loses water content and elasticity, making the annulus fibrosus less able to contain the nucleus pulposus under normal pressure.
• Excessive compressive forces — repeated or sudden loading, such as heavy lifting or axial compression, increase pressure inside the disc, forcing the nucleus outward.
• Loss of spinal stability — weak core or paraspinal muscles fail to absorb normal forces, transferring excessive load directly to the disc.
• Shear and torsional stress — twisting, bending or sudden rotational movements generate uneven forces on the disc, causing small tears in the annulus fibrosus that can progress to herniation.
• Traumatic overload — sudden impacts, falls or high-force collisions can rupture the outer disc layer, allowing the inner material to protrude.
• Postural strain — prolonged slouching, forward flexion or sustained awkward positions create uneven pressure across the disc, gradually weakening its structure.

What are the symptoms of disc herniation?

Symptoms can present with a combination of local and radiating, such as:

• Neck or lower back pain — often the first symptom, may be dull, aching or sharp.
• Radiating nerve pain — pain that travels to the arms, hands, buttocks, legs or feet.
• Numbness or tingling — affected areas may feel “pins and needles.”
• Muscle weakness — may affect grip strength, walking or lifting ability.
• Limited mobility — stiffness or difficulty moving the neck or lower back.
• Severe cases — bladder or bowel dysfunction (requires urgent medical attention).

Who is at risk of getting a herniated disc?

Although disc herniation is common in Singapore, certain factors make a person more susceptible to developing it:

• Older adults — discs lose water content and elasticity, reducing their ability to absorb shocks and resist tearing.
• Individuals with a family history of disc problems — inherent structural weakness in disc tissue can make herniation more likely.
• People who have experienced trauma — sudden impacts, falls or accidents can tear the annulus fibrosus, allowing the nucleus to protrude.
• Workers with poor posture or ergonomics — prolonged slouching or improper workstation setup concentrate stress on certain discs.
• Individuals who frequently lift, bend or twist — repeated spinal load increases internal disc pressure, making bulging or rupture more likely.
• People with higher body weight — increased weight accelerates wear and tear on discs.
• Those with weak core muscles or a sedentary lifestyle — inadequate support forces discs to absorb more strain than they can handle.
  

How are disc herniations diagnosed in Singapore?

A structured assessment is essential to confirming a diagnosis as it helps Dr James Tan to determine the severity and rule out other causes of neck or back pain.

• Clinical history — a detailed history helps identify the mechanisms causing the herniation. Our doctor will look at:
  • Sudden onset following lifting, bending or trauma
  • Gradual pain develops with overuse or poor posture
  • Previous spine injuries or recurrent symptoms
  • Limitations in daily activities
• Symptom review — patterns provide insight into severity and nerve involvement, which involves:
  • Location and intensity of pain
  • Presence of numbness, tingling or weakness
  • Functional limitations such as difficulty walking, gripping or bending
  • Progression or improvement with rest
• Physical examination — examines functional and neurological impact by assessing:
  • Palpation for tenderness or muscle spasm
  • Range of motion assessment in the neck or back
  • Strength and reflex testing
  • Posture and gait evaluation
• Imaging examination — confirms structural involvement:
  • X-ray — for alignment and degenerative changes
  • Magnetic Resonance Imaging (MRI) — for detailed evaluation of disc bulge, nerve compression and soft tissue
  • Computed Tomography (CT) scan or CT myelogram — typically reserved for complex or unclear cases

How are disc herniations treated in Singapore?

Our doctor typically formulates a multi-approach treatment plan to improve the outcome, which may include:

Conservative management

• Activity modification — avoiding movements that worsen symptoms
• Load management — temporary reduction in lifting, bending or twisting
• Pain management — ice, heat and prescribed analgesics
• Education — guidance on posture, ergonomics and safe movement

Non-surgical interventions

• Epidural steroid injections — used selectively for severe nerve-root irritation
• Physiotherapy programmes — stretching, strengthening and core stabilisation exercises
• Supportive bracing — temporary relief and spinal support during rehabilitation
• Platelet-rich plasma (PRP) injections — may be considered in selected cases to support tissue healing and reduce inflammation around the affected disc

Surgical management (selected cases)

• Microdiscectomy/decompression — removal of a herniated disc pressing on nerves
• Spinal fusion or stabilisation — in cases of structural instability or recurrent herniation
• Minimally invasive spine surgery — used selectively to reduce recovery time

Rehabilitation and return to activity

• Gradual strengthening and core stability — targeted exercises improve spinal support, reduce disc load and enhance overall stability to prevent further injury.
• Posture correction and movement retraining — retraining proper sitting, standing and lifting mechanics reduces stress on affected discs and promotes safer movement patterns.
• Graduated return to work or sport based on functional milestones — patients progressively resume activities in stages, guided by pain levels, strength and mobility rather than fixed timelines, ensuring a safe recovery.
• Strategies to prevent recurrence — education on ergonomics, posture, core conditioning and safe lifting techniques helps reduce the risk of future disc herniation or nerve irritation.

Book an Appointment

Neck or back pain isn’t always “just muscle strain.” If your pain radiates to the arms, hands, legs or feet or if you notice numbness or weakness, your spine may be under stress.

Book an appointment with Dr James Tan for a personalised assessment, clear explanation of what’s happening in your spine and a structured plan to relieve pain and restore function.