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Disc, nerve root and spinal cord: three landmarks
A disc separates most neighbouring neck vertebrae. A herniation occurs when some of its inner material protrudes through its outer covering. Nearby, a nerve root leaves the spine and contributes to messages travelling to the arm and hand.
Radiculopathy means a nerve root is not functioning normally. It may relate to a herniation or other changes that reduce space around it. The spinal cord is different: it passes through the central canal and connects the brain with the rest of the body.
Understand the picture
Nerve root and spinal cord are different
Disc
A protrusion may lie near nervous structures.
Nerve root
It leaves the spine and contributes to arm messages.
Spinal cord
It runs through the central canal; its symptoms require different attention.
What symptoms can occur?
Pain may spread towards the shoulder, arm or certain fingers. It may burn, sting or feel like an electric shock. Tingling, numbness and difficulty gripping or carrying can accompany it. The neck is not always the most painful area.
These descriptions guide assessment without confirming the cause. Shoulder problems or a nerve compressed elsewhere can cause similar sensations. An online map cannot reliably identify a particular nerve root or spinal level.
Chapter sources [1]
Why can a nerve root become irritated?
A disc protrusion or bony changes can reduce the space around a nerve. Inflammation may also contribute. Symptoms do not necessarily mean that a nerve is being severely crushed all the time.
Changes may develop gradually or become symptomatic without an obvious triggering movement. You have not necessarily damaged your neck by sleeping or working. Each factor is considered alongside the examination and the course of symptoms.
How is the problem assessed?
The clinician identifies painful areas, checks strength, reflexes and sensation, and examines movement. Practical difficulties matter: dropping objects, being unable to lift an arm or losing precision differ from local discomfort alone.
MRI is not always needed immediately. Its usefulness depends on severity, persistence and the decisions being considered. A finding in a report should fit the clinical picture; its presence alone does not determine treatment.
Which changes need prompt help?
New or increasing weakness needs prompt assessment. Clumsy hands, heavy legs, changes in balance, walking or bladder function may indicate a problem beyond one nerve root. Do not wait until your next routine session to report them.
Call 112 if symptoms are sudden, walking becomes impossible, or new speech problems, facial changes or one-sided weakness occur. Arm pain with chest pressure, breathlessness or faintness should also be treated as a possible emergency.
How is treatment chosen?
Many cases are initially managed without surgery, with monitoring and an adapted return to activity. A doctor may discuss pain relief. Choices depend on your health, medicines and difficulties; this guide does not provide a prescription.
Specialist assessment may be needed for neurological deficits, persistent severe pain or suspected spinal cord involvement. Surgery is neither automatic when a report mentions a herniation nor something to rule out at all costs.
What does the physiotherapist do?
The physiotherapist assesses difficult movements and tasks, then adapts progression to the medical context. Goals might include more comfortable arm use, better tolerance of work or useful movement for getting around.
Changes in nerve symptoms are monitored too. Deteriorating strength or sensation can change the plan. Exercises do not push a disc back into place, and no technique guarantees that a nerve will be permanently released.
Chapter sources [1]
How can you adapt daily activities?
Spread loads, vary positions and retain activities you tolerate. Supporting the arm may sometimes improve comfort; its usefulness depends on your response. For sleep, seek a comfortable position without demanding millimetre-perfect alignment.
If a task progressively increases hand symptoms, reduce its duration or intensity and report the response. Note changes in strength and precision. Avoid repeated provocative tests or pressing down on your own neck to check a diagnosis.
Chapter sources [1]
Are general neck exercises suitable?
They do not replace a programme adapted to nerve involvement. Ask which movements suit your situation. Mild temporary neck discomfort is different from pain spreading further down the arm, new numbness or weakness.
Stop a movement that causes these changes and seek advice. Nerve-tension exercises and traction should not be improvised from a general illustration. Monitoring the response matters more than completing a fixed number of repetitions.
In everyday life
Following a specific difficulty
Observe
Which arm task is difficult, and since when?
Adapt
Change the load without provoking more nerve symptoms.
Reassess
Declining strength needs advice, not simply more exercises.
What can the course look like?
Symptoms may begin to improve over several weeks, but complete settling can take longer. Tingling and tolerance of tasks may change differently from pain. An average timeline does not predict your recovery.
Arrange reassessment if progress is insufficient or limitations remain substantial. Never wait for a several-week deadline when strength is deteriorating or symptoms suggest spinal cord involvement.
Chapter sources [1]
Your questions
Are disc herniation and radiculopathy the same?
No. Herniation concerns the disc; radiculopathy concerns a nerve root. A herniation can exist without symptoms, and radiculopathy can have another cause.
Chapter sources [1]
Can a tingling finger identify the affected vertebra?
It gives the clinician information, but territories overlap and other nerves may be involved. Assessment does not rely on a single finger or a diagram.
Chapter sources [1]
Is an operation always necessary?
No. Decisions depend on symptoms, progression, examination and matching imaging. Progressive neurological impairment does require prompt specialist advice.
Chapter sources [3]
Can I keep working?
This depends on your tasks and symptoms. Temporary adjustments may help you remain active. Discuss aggravating movements and any strength or safety concerns.
Chapter sources [1]
Sources and references
- [1] NHS Inform — Cervical radiculopathy
- [2] HAS — Cervicalgies : ne pas recourir de façon systématique à l’imagerie
- [3] NHS — Cervical spondylosis
- [4] NHS · Stroke symptoms
- [5] NHS · Heart attack
- [6] CGDIS Luxembourg · 112
- [7] NHS Inform · Exercises for neck problems
- [8] NICE CG150 — Headaches in over 12s: recommendations
Text updated on
Medical review: awaiting Hasib Selimovic.