22/04/2026
Understanding spinal disc changes.
Spinal discs sit between the vertebrae and help support movement while absorbing load through the spine.
A healthy disc contains a soft centre called the nucleus pulposus, surrounded by a stronger outer layer known as the annulus fibrosus.
With age, loading, or injury, discs can undergo structural changes.
Disc degeneration refers to the gradual loss of hydration and disc height.
A disc bulge or protrusion occurs when the disc extends slightly beyond its normal boundary.
A disc herniation (or extrusion) occurs when inner disc material moves through the outer layer and may irritate nearby nerves.
Sequestration refers to a fragment of disc material separating completely from the disc.
These changes are commonly seen on imaging and do not always correlate with pain or symptoms.
If you are experiencing back pain, an assessment by a qualified health professional can help determine the most appropriate management.
📍 Up Chiropractic
Leederville, Perth WA
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