Cervical disc herniation: symptoms, causes and evaluation

The cervical spine has seven vertebrae that support the head and let you turn, tilt, and bend your neck. Between them are intervertebral discs: a fibrous outer ring and a softer inner core. When part of that material shifts backward or to one side, it can come close to a nerve root or to the canal that carries the spinal cord.

If the disc irritates a nerve root, pain can travel into the shoulder, arm, or hand. This is called cervical radiculopathy. The levels most often involved are in the lower neck, between the fifth and seventh vertebrae.

Not every herniation causes symptoms. Disc changes are common on MRIs of people with no pain, so imaging is read together with your history and exam, not on its own.

It is usually a combination of factors rather than a single cause:

• Disc wear with age: over the years discs lose water and elasticity, and the outer ring becomes more vulnerable. It is more common from middle age onward.
• Sustained postures and repetitive strain: long hours with the neck bent over a computer or phone, or jobs that load the shoulders and neck, increase the load on the discs.
• Injuries: a blow, a fall, or a car accident can trigger or worsen a herniation.
• Other factors: smoking is associated with greater disc wear, and a prior history of spine problems may increase the risk.

• Neck pain that may spread to the shoulder, shoulder blade, or arm.
• Stiffness and difficulty turning or tilting the head.
• Tingling or numbness in the arm, hand, or fingers.
• Weakness when gripping objects or lifting the arm.
• Pain that increases with certain neck positions or when holding the same position for a long time.

Symptoms are not always intense at first. Some people only notice discomfort when turning the neck or after hours in the same posture. Even so, if there is tingling or loss of strength, it is worth having it checked rather than waiting for it to progress.

The evaluation reviews your symptoms, when they started, and what makes them better or worse. The exam includes neck mobility, strength, reflexes, and sensation in the arms and hands to locate which nerve root may be involved. If you bring an MRI, CT scan, or X-rays, they are reviewed in the visit; if not, the need for them is assessed.

In many cases, symptoms of a cervical disc herniation ease over weeks or months. Conservative care aims to support that process and improve function; depending on the exam, the plan may include:

• Cervical table traction, when indicated.
• Physiotherapy and therapeutic exercise for mobility and control of the neck and upper back muscles.
• Manual techniques chosen with caution; when there are arm symptoms, the approach is more conservative.
• Guidance on posture, breaks, and ergonomics for work and screen use.

Conservative care is an option evaluated case by case; it does not replace a surgical indication. If weakness progresses, symptoms do not improve as expected, or there are signs of spinal cord compression, an assessment by a medical specialist such as an orthopedic surgeon or neurosurgeon is recommended.

• Neck pain or stiffness that limits work, sleep, or daily activity.
• Pain, tingling, or numbness that travels into the arm or hand.
• Episodes that do not improve with brief rest and home care.
• Recent imaging you want reviewed in the visit.

Seek emergency care if you notice progressive clumsiness in your hands (for example, buttoning or writing), unsteadiness when walking, or weakness that is getting worse in the arms or legs, especially if any of these comes with fever. Seek medical care promptly if neck pain comes with fever, unexplained weight loss, a history of cancer, or severe pain that does not ease with rest or at night.

Do not book here for loss of bladder or bowel control, numbness in the genital or anal area, leg weakness that is getting worse, or pain after a major injury. That is an emergency.