ORTHOPEDIC CONCERN

Slipped Disc

Also called: bad back, back pain, slipped disc, sciatica, herniated disc, spine pain, stiff back, cant bend, back goes, locked back

A slipped disc, also known as a herniated or prolapsed disc, occurs when the soft material inside one of the discs between the spinal bones pushes through a weakened area of its outer layer.

TYPICALLY OCCURS

Ageing, disc degeneration, strain and spinal injury

TREATED BY

Spinal surgery, injections, physiotherapy and pain management

ALSO LINKED TO

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Why it happens?

The spine is made up of individual bones called vertebrae, separated by intervertebral discs that act as cushions and help the spine move. Each disc has a softer, gel-like centre surrounded by a tougher outer layer. A slipped disc does not literally slip out of position. Instead, part of the inner disc material pushes through or causes a weakened area of the outer layer to bulge. This can trigger local inflammation and, depending on its position, irritate or compress nearby spinal nerves.

Age-related changes are an important contributor. Over time, spinal discs naturally lose some of their water content, flexibility and ability to tolerate pressure. The outer portion of a disc can become more vulnerable to small tears, making herniation more likely. Repeated lifting, bending, twisting or physically demanding activities can place additional stress on the discs, particularly when combined with existing degeneration. A sudden awkward movement or injury can sometimes trigger symptoms, although many slipped discs develop without one clearly identifiable event.

The symptoms depend heavily on where the affected disc is located and whether it interacts with a nerve. A lumbar disc herniation in the lower back can irritate nerve roots that travel into the leg, potentially producing sciatica, while a cervical disc problem in the neck can cause symptoms extending into the shoulder, arm or hand. Some slipped discs cause only localised discomfort, and others cause no symptoms at all. The size of the disc herniation does not always correspond directly with the severity of symptoms, which is why clinical assessment focuses on pain, neurological signs and function as well as imaging findings.

How far along is it?

Early

The disc begins to extend beyond its usual boundary while much of its outer structure remains intact. There may be mild localised pain or no symptoms at all.

Moderate

Disc material pushes further through a weakened or damaged outer layer. Nearby nerve irritation may cause pain, tingling or numbness extending into an arm or leg.

Advanced

More substantial disc disruption can produce persistent nerve compression, potentially causing severe radiating pain, numbness, muscle weakness or reduced function.

What addresses it?

Treatments that address this

Laser disc decompression→Spinal fusion surgery→Epidural steroid injection→

Back or neck pain does not automatically indicate a slipped disc, and many episodes improve over time. Medical assessment is worthwhile when pain is severe, persists or progressively worsens, or when it spreads into an arm or leg and is accompanied by persistent tingling, numbness or weakness.

Seek urgent medical attention if lower-back symptoms are accompanied by numbness around the genitals, buttocks or inner thighs, difficulty starting or controlling urination, loss of bowel control, or severe or worsening weakness in both legs. These can indicate serious nerve compression, including cauda equina syndrome, and require emergency assessment.

Quick Questions:

What does a slipped disc feel like?

Symptoms can include back or neck pain, muscle discomfort and restricted movement. When a nerve is affected, pain may travel into an arm or leg and can be accompanied by tingling, numbness or weakness.

What causes a slipped disc?

Disc degeneration associated with ageing is a common factor. Repeated bending, lifting or twisting, physical strain and injuries can also contribute, although a slipped disc can sometimes develop without an obvious trigger.

Can a slipped disc heal without surgery?

Many symptomatic slipped discs improve without surgery. The body can sometimes gradually reduce the herniated disc material, while inflammation and nerve irritation settle. Recovery depends on the location, symptoms and severity of nerve involvement.

Does a slipped disc always require surgery?

No. Most cases are initially managed without surgery using appropriate activity, pain management and sometimes physiotherapy or injections. Surgery may be considered when significant symptoms persist despite conservative care or when serious or progressive neurological problems develop.