Intervertebral disc
Also called: spinal disc, disc
What it means
An intervertebral disc is the soft, cushion-like pad sitting between each vertebra in your spine. It acts as a shock absorber and allows your back to bend and twist.
Healthy discs help protect your vertebrae and keep your spine flexible, which matters for posture, movement, and reducing strain that can lead to compression fractures over time.
Each intervertebral disc sits between two vertebral bodies in the spine, from the neck down to the lower back. It has a tough outer ring (annulus fibrosus) and a softer, gel-like center (nucleus pulposus). Together, these let the disc absorb shock and spread out pressure when you walk, bend, lift, or twist.
Discs don't contain bone, but they work closely with the vertebrae and vertebral endplates above and below them. As we age, discs can lose height and hydration, a process sometimes called degenerative disc disease. This is different from osteoporosis, which affects bone density, but both can contribute to back pain, stiffness, or height loss over the years.
Keeping your spine healthy involves more than bone strength alone. Posture training, core stability training, and avoiding excessive spinal flexion under load are commonly recommended, especially if you already have a vertebral compression fracture or low bone density. Any specific back pain or disc concerns are best discussed with your doctor, since treatment decisions depend on your individual history and imaging.
Healthy discs cushion your vertebrae and keep your spine flexible, reducing strain linked to compression fractures.
Where this leads
WordWondering what happens when spine strain goes too far. This explains how a weakened vertebra can collapse or flatten.
Related words
A vertebral body is the solid, round block of bone that forms the front, weight-bearing part of each bone in your spine.
The vertebral endplate is the thin layer of bone and cartilage at the top and bottom of each spinal vertebra,…
Degenerative disc disease (DDD) is the natural wearing down of the cushion-like discs between your spine bones…
The spine, or backbone, is the column of small bones (vertebrae) running down your back that supports your body and…
A vertebral compression fracture is when a bone in the spine collapses or flattens, often because the bone is…
Spinal stenosis is a narrowing of the spaces in your spine that can press on the spinal cord or nearby nerves, often…
Education only, not medical advice. Decisions about tests, medications and treatment belong with your own doctor. OsteoStrong does not diagnose, treat or cure any disease.
