What Is a Lumbar Disc Herniation? Symptoms, Treatment and Endoscopic Discectomy

Created: 02.09.2024 · Last Updated: 13.08.2026 · Category: Neurosurgery · Prepared by the Academic Hospital Web and Editorial Board.

What Is a Lumbar Disc Herniation?

Lumbar disc herniation occurs when material from an intervertebral disc extends beyond its normal boundary and may compress or irritate a nearby nerve root.

A disc abnormality on MRI does not necessarily cause symptoms. Imaging findings should therefore be interpreted together with the patient's pain pattern and neurological examination.

Not every lumbar disc herniation seen on MRI requires surgery. Treatment decisions depend on symptoms, neurological findings, muscle strength, symptom duration and the effect on daily life.

What Causes a Lumbar Disc Herniation?

Disc herniation often develops through age-related degeneration rather than a single traumatic event.

  • Age-related disc degeneration
  • Repeated lifting or physical strain
  • Poor lifting technique
  • Excess body weight
  • Smoking
  • Physical inactivity
  • Certain occupational loads
  • Genetic susceptibility

What Are the Symptoms?

  • Low-back pain
  • Pain radiating into the buttock or leg
  • Numbness or tingling
  • Burning or electric-shock-like pain
  • Weakness in specific muscle groups
  • Reduced reflexes

Which Symptoms Require Urgent Assessment?

  • New or progressive significant leg weakness
  • Marked weakness of the foot or ankle
  • Urinary retention or new loss of bladder control
  • New bowel-control problems
  • Numbness around the perineum or genitals
  • Significant neurological symptoms affecting both legs

These symptoms may indicate cauda equina syndrome and require urgent medical evaluation.

How Is It Diagnosed?

Assessment begins with medical history and neurological examination. Muscle strength, sensation, reflexes and walking function may be evaluated.

MRI is commonly used to identify disc herniation and nerve-root compression, particularly when neurological findings are present or surgery is being considered.

How Is a Lumbar Disc Herniation Treated?

Many episodes of sciatica related to disc herniation improve without surgery.

Treatment may include activity modification, appropriate medication, physiotherapy, exercise and selected epidural injections.

When Is Surgery Needed?

Surgical treatment may be considered for:

  • Persistent disabling leg pain despite appropriate non-operative treatment
  • Progressive motor weakness
  • Significant neurological impairment
  • Cauda equina syndrome
Surgery should not be recommended from MRI findings alone. The imaging abnormality should correspond to the patient's symptoms and neurological findings.

What Is Microdiscectomy?

Microdiscectomy is a well-established procedure in which the herniated disc fragment is removed through a relatively small surgical exposure using magnification or an operating microscope.

What Is Full-Endoscopic Lumbar Discectomy?

Endoscopic discectomy is a minimally invasive technique that uses a small endoscope containing a camera and working channel to remove disc material compressing a nerve root.

Depending on the location and anatomy, transforaminal or interlaminar approaches may be used.

What Are the Potential Advantages?

  • Small surgical incision
  • Limited disruption of muscles and soft tissue
  • Potentially less postoperative pain
  • Early mobilisation
  • Potential for short hospital stay or same-day discharge
  • Potentially earlier return to activities
Endoscopic discectomy is not universally superior to microdiscectomy. Both can be effective in appropriately selected patients.

Is Every Herniated Disc Suitable for Endoscopic Surgery?

No. Suitability depends on spinal level, location and migration of the disc fragment, bony anatomy, associated stenosis, instability and previous surgery.

What Is Recovery Like?

Many patients can mobilise early after minimally invasive surgery.

Same-day discharge may be possible for selected patients, while others may require overnight or longer observation.

Radiating leg pain may improve quickly, while long-standing numbness or weakness may recover more slowly.

Assessment for Lumbar Disc Herniation and Endoscopic Surgery

MRI findings, neurological examination and surgical and non-surgical options can be evaluated together.

Frequently Asked Questions

What is a lumbar disc herniation?
Lumbar disc herniation occurs when disc material extends beyond its normal boundary and may compress a nerve root.
Does a herniated disc on MRI mean surgery is needed?
No. MRI findings should be interpreted together with symptoms, neurological examination and response to non-operative treatment.
Can a lumbar disc herniation improve without surgery?
Yes. Many episodes of sciatica related to lumbar disc herniation improve without surgery unless progressive neurological deficit or emergency symptoms are present.
Which symptoms require urgent assessment?
Progressive leg weakness, urinary retention, bladder or bowel dysfunction and saddle-area numbness require urgent medical evaluation.
What is endoscopic lumbar discectomy?
It is a minimally invasive technique using a camera and working channel to remove disc material compressing a nerve root.
Is endoscopic discectomy better than microdiscectomy?
No single technique is best for every patient. Both procedures can be effective when appropriately selected.
Can every lumbar disc herniation be treated endoscopically?
No. Suitability depends on the location of the herniation, bony anatomy, associated stenosis, instability and previous surgery.
Can patients go home the same day after endoscopic discectomy?
Same-day discharge may be possible for selected patients, but some patients may require overnight observation.
Academic Hospital note: Lumbar disc herniation treatment should not be based on MRI findings alone. Symptoms, neurological findings and response to treatment should be considered together. You can book an appointment.

References

  1. Academic Hospital. Lumbar Disc Herniation and Endoscopic Discectomy
  2. North American Spine Society. Diagnosis and Treatment of Lumbar Disc Herniation with Radiculopathy