What Is a Cervical Disc Herniation? Symptoms, Treatment and Endoscopic Surgery

Created: 10.09.2024 · Last Updated: 12.08.2026 · Category: Neurosurgery · Prepared by the Academic Hospital Web and Editorial Board.

A cervical disc herniation occurs when part of an intervertebral disc in the neck extends beyond its normal boundaries.

If the herniated material compresses a nerve root, it can cause pain radiating from the neck into the shoulder, arm or hand together with numbness or weakness. More central compression affecting the spinal cord can cause hand clumsiness, balance problems and difficulty walking.

A cervical disc herniation seen on MRI does not automatically mean that surgery is required. Imaging findings should be correlated with symptoms and neurological examination.

What Is a Cervical Disc Herniation?

The cervical spine consists of seven vertebrae. Intervertebral discs between the vertebrae contribute to movement and help distribute mechanical loads.

Changes in the outer fibres of a disc can allow disc material to protrude or herniate.

The herniation may affect:

  • A nerve root
  • The spinal cord
  • Or both

Not every disc protrusion seen on imaging causes symptoms.

What Causes a Cervical Disc Herniation?

Age-related degenerative change is a common background factor.

As discs age, they can lose water content and elasticity and become more susceptible to fissuring and herniation.

Associated factors can include:

  • Age-related disc degeneration
  • Genetic susceptibility
  • Smoking
  • Repeated or substantial mechanical loading
  • Certain injuries

Prolonged computer or smartphone use should not automatically be described as directly causing a disc herniation, although prolonged static postures can aggravate neck and shoulder discomfort.

What Are the Symptoms?

A cervical disc herniation may cause no symptoms or may produce symptoms from nerve-root or spinal-cord compression.

Nerve-root symptoms can include:

  • Neck pain
  • Pain radiating into the shoulder, arm or hand
  • Numbness or tingling
  • Weakness in specific muscle groups
  • Changes in reflexes

Not all neck, shoulder or arm pain is caused by a cervical disc herniation.

What Is Cervical Radiculopathy?

Cervical radiculopathy occurs when a nerve root in the neck becomes compressed or irritated, producing pain, numbness, tingling or weakness along the distribution of that nerve.

A herniated disc is one possible cause. Degenerative bone spurs and narrowing of the neural foramen can also produce radiculopathy.

Many cases improve without surgery.

What Are the Signs of Spinal Cord Compression?

When a disc herniation or associated narrowing significantly compresses the spinal cord, cervical myelopathy can develop.

Symptoms can include:

  • Loss of hand dexterity
  • Difficulty fastening buttons or writing
  • Hand numbness or weakness
  • Leg stiffness or weakness
  • Balance and walking difficulties
  • Frequent falls or poor lower-limb coordination
  • Bladder or bowel changes in advanced cases

New or progressive arm or leg weakness, worsening balance or walking, or new bladder or bowel dysfunction requires prompt medical assessment.

How Is a Cervical Disc Herniation Diagnosed?

Diagnosis combines symptoms, medical history, neurological examination and imaging when appropriate.

The examination may assess:

  • Muscle strength
  • Sensation
  • Reflexes
  • Neck movement
  • Hand dexterity
  • Walking and balance

MRI

MRI is useful for assessing the discs, nerve roots, spinal cord and surrounding soft tissues.

It is particularly important when there are persistent or progressive neurological findings, concern about spinal-cord compression or a need for surgical planning.

MRI findings should always be interpreted in the context of the clinical examination.

EMG

Electromyography and nerve-conduction studies may be useful in selected patients when cervical radiculopathy needs to be distinguished from peripheral nerve disorders.

How Is a Cervical Disc Herniation Treated?

Treatment is individualised according to symptoms, neurological findings and functional impairment rather than MRI appearance alone.

When there is no urgent indication for surgery, management commonly starts with non-operative treatment.

Options can include:

  • Appropriate activity modification
  • Pain-relieving or anti-inflammatory medication when clinically appropriate
  • Individualised physiotherapy and exercise
  • Ergonomic and daily-activity modifications
  • Selected interventional pain procedures
Not everyone with a cervical disc herniation needs surgery. Many patients with cervical radiculopathy improve with appropriate non-operative management.

When Is Surgery Considered?

Surgery may be considered particularly when there is:

  • Progressive or significant muscle weakness
  • Spinal-cord compression with myelopathy
  • Persistent disabling radicular pain despite appropriate non-operative treatment
  • Clear compression on imaging that corresponds to the symptoms and examination

The decision should not be based on the size of a disc herniation on MRI alone.

What Are the Surgical Options?

The appropriate procedure depends on the level and location of compression, spinal alignment, stability and individual anatomy.

Anterior Cervical Discectomy and Fusion (ACDF)

The affected disc is removed through an anterior approach, the nerve root and/or spinal cord is decompressed and the treated level is stabilised with fusion.

Cervical Disc Replacement

In appropriately selected patients, an artificial disc can be inserted after decompression with the aim of preserving movement at the treated segment.

Posterior Cervical Foraminotomy / Discectomy

Selected lateral nerve-root compression can be treated from the back of the neck, sometimes without fusion.

Endoscopic Cervical Surgery

Selected patients can undergo minimally invasive decompression using a small working channel, camera and specialised instruments.

Each technique has different indications, advantages, limitations and potential complications.

What Is Endoscopic Cervical Discectomy?

Endoscopic cervical discectomy is a minimally invasive approach that uses an endoscope and specialised instruments to decompress an affected nerve in appropriately selected cervical disc herniations.

There is no single endoscopic technique. Different approaches can be used depending on the location of the herniation and the patient's anatomy.

The objective is not simply to remove an abnormality seen on MRI, but to adequately and safely relieve the neural compression responsible for the patient's symptoms.

The term “fully closed surgery” is a patient-facing description rather than a technical surgical classification. Endoscopic spine surgery still uses a small skin entry or incision and a working channel.

Who May Be Suitable for Endoscopic Cervical Surgery?

Endoscopic surgery is not suitable for every cervical disc herniation.

Selection can depend on:

  • Level of the herniation
  • Central or lateral location
  • Degree of nerve-root or spinal-cord compression
  • Associated bony stenosis
  • Spinal stability
  • Cervical alignment
  • Single-level or multilevel disease
  • Symptoms and neurological examination

ACDF, cervical disc replacement or another decompression technique may be more appropriate in some patients.

What Are the Potential Advantages of Endoscopic Surgery?

Potential advantages in appropriately selected patients can include:

  • A smaller surgical access
  • Reduced disruption of muscles and soft tissues
  • Avoidance of fusion with selected techniques
  • Earlier mobilisation in some patients
  • Shorter hospital stay in selected cases

These benefits are not guaranteed and depend on the procedure, patient and surgical comparison being made.

Endoscopic surgery is not risk-free. Potential complications include nerve-root or spinal-cord injury, dural injury, bleeding, infection, incomplete decompression, recurrent disc herniation and the need for further surgery. Risks differ between surgical approaches.

What Happens After Cervical Disc Surgery?

Recovery depends on the procedure and the patient's neurological condition.

Mobilisation may begin soon after surgery when appropriate. Selected minimally invasive procedures may allow same-day or next-day discharge, whereas more extensive surgery may require a longer hospital stay.

Discharge depends on factors including neurological status, pain control, walking, swallowing, wound status and the type of procedure.

Radiating arm pain may improve rapidly in some patients. Numbness or longstanding weakness may take longer to recover, and complete neurological recovery cannot be guaranteed.

How Can You Support Cervical Spine Health?

There is no proven method that completely prevents cervical disc herniation, as age and genetic factors also contribute to disc degeneration.

General measures include:

  • Not smoking
  • Remaining physically active
  • Maintaining neck and trunk muscular capacity
  • Avoiding prolonged static positions
  • Adjusting the workstation appropriately
  • Using controlled lifting techniques

Rather than trying to maintain one “perfect posture” throughout the day, changing position and avoiding prolonged inactivity is generally more practical.

Which Symptoms Require Prompt Assessment?

Prompt medical assessment is appropriate for:

  • New or progressive arm or hand weakness
  • Leg weakness or loss of coordination
  • Significant deterioration in walking or balance
  • Progressive loss of hand dexterity
  • New bladder or bowel dysfunction
  • Neurological symptoms following significant trauma

Have Neck and Radiating Arm Symptoms Assessed

Neck-to-arm pain, numbness, weakness or walking and balance problems can be assessed together with neurological examination and imaging.

Frequently Asked Questions

What is a cervical disc herniation?
A cervical disc herniation occurs when part of an intervertebral disc in the neck extends beyond its normal boundaries. If it compresses a nerve root or the spinal cord, it can cause radiating arm pain, numbness, weakness or more advanced neurological symptoms.
Does a cervical disc herniation on MRI always require surgery?
No. An MRI finding alone is not an indication for surgery. Treatment decisions consider pain, neurological examination, weakness, spinal-cord involvement, functional impairment and whether the imaging findings correspond to the patient's symptoms.
Can a cervical disc herniation improve without surgery?
Yes. Many cases of cervical radiculopathy without progressive muscle weakness or significant spinal-cord compression can improve with non-operative treatment such as appropriate activity modification, medication, physiotherapy and exercise.
Can a cervical disc herniation affect the legs?
Nerve-root compression primarily affects the shoulder, arm or hand. If a disc herniation or associated stenosis compresses the spinal cord, cervical myelopathy can cause leg stiffness or weakness, poor balance and difficulty walking.
What is endoscopic cervical disc surgery?
Endoscopic cervical discectomy is a minimally invasive procedure that uses a small surgical access and camera system to relieve neural compression in selected cervical disc herniations. There is more than one endoscopic technique, and not every cervical disc herniation is suitable for this approach.
Does endoscopic cervical surgery always avoid implants or screws?
Some endoscopic decompression and discectomy techniques can be performed without fusion or an implant. Whether this is appropriate depends on the location of the herniation, spinal stability, bone anatomy and the surgical approach. Implant-free surgery is not appropriate for every patient.
Is endoscopic cervical surgery safer than conventional surgery?
Endoscopic surgery may provide advantages such as smaller surgical access and reduced soft-tissue disruption in appropriately selected patients. It cannot, however, be described as safer or superior for every patient and every cervical condition. Procedure selection depends on anatomy, neurological findings and surgical expertise.
When can patients leave hospital after cervical disc surgery?
The timing of discharge depends on the procedure and the patient's condition. Selected minimally invasive procedures may allow same-day or next-day discharge, while more extensive surgery can require a longer hospital stay.
Academic Hospital note: Treatment of cervical disc herniation should not be based on MRI findings alone. The distribution of pain, neurological examination, muscle strength, spinal-cord or nerve-root compression and functional impairment should be assessed together. You can book an appointment.

References

  1. Academic Hospital. Boyun Fıtığı (Servikal Disk Hernisi) ve Endoskopik Diskektomi (Tam Kapalı) Ameliyatı
  2. American Academy of Orthopaedic Surgeons. Cervical Radiculopathy (Pinched Nerve)
  3. American Academy of Orthopaedic Surgeons. Surgical Treatment for Cervical Radiculopathy
  4. American Association of Neurological Surgeons. Herniated Disc
  5. North American Spine Society. Clinical Guidelines: Cervical Radiculopathy
  6. Wang R, et al. Clinical Outcomes and Future Directions of Endoscopic Cervical Spine Surgery.