Degenerative disc disease overview

How spinal discs change over time

Intervertebral discs sit between the bones of the spine and act as cushions during movement. Over time, these discs naturally lose water content, become thinner and may lose some of their cushioning properties.

Although referred to as ‘degenerative disc disease’, it is not necessarily a disease. It commonly reflects age-related changes in the spinal discs, although some disc problems can also contribute to back or leg pain.

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Degenerative disc disease causes and risk factors

Factors linked with disc degeneration

As outlined above, degenerative disc disease is unfortunately an integral part of the ageing process. There are however a number of factors which are linked with disc degeneration, such as:

Being overweight

Extra body weight can place greater strain on spinal discs.

Bad posture

Poor posture may increase stress on the spine over time.

Genetic factors

A family history may increase the likelihood of earlier disc degeneration.

Strenuous physical lifestyle

Repeated lifting or high-impact activity can place added stress on spinal discs.

Sedentary lifestyle

Prolonged sitting may contribute to reduced spinal movement and disc stress.

Other spinal conditions

Conditions such as scoliosis or osteoarthritis may contribute to disc degeneration.

Prior spinal injury or infection

Previous damage or infection may affect the health of spinal discs.

Degenerative disc disease symptoms

When disc degeneration becomes painful

Chronic disc degeneration is normal, and likely to be painless.

However, acute degeneration of a disc (disc prolapse or disc tear – links) can be acutely painful and may result in pressure on exiting major nerve roots. Most acute disc accidents resolve spontaneously over time, but some do require medical or surgical treatments.

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Degenerative disc disease tests and diagnosis

When spinal imaging may be required

In most cases, expensive imaging is not needed, but if significant nerve root compression is suspected, MRI or CT scanning may need to be performed.

CT/MRI scans (this will reveal any other factors such as bone spurs – ‘osteophytes’, evidence of spinal stenosis, fracture or presence of tumours).

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