3 doctors weighed in:
How herniated nucleus pulposus develops?
3 doctors weighed in

Dr. Chintan Sampat
Orthopedic Surgery - Spine
2 doctors agree
In brief: A disc herniation
The nucleus pulposus is the middle soft part of the disc in the spine that normally acts like a cushion.
It looks and feels like a thick jelly material. Sometimes, it can leak out if there is a tear in the outside part of the disc (called the annulus fibrosus). When it leaks out, it can pinch a nerve and cause pain that radiates into the extremities.

In brief: A disc herniation
The nucleus pulposus is the middle soft part of the disc in the spine that normally acts like a cushion.
It looks and feels like a thick jelly material. Sometimes, it can leak out if there is a tear in the outside part of the disc (called the annulus fibrosus). When it leaks out, it can pinch a nerve and cause pain that radiates into the extremities.
Dr. Chintan Sampat
Dr. Chintan Sampat
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1 comment
Dr. Jonathan Hyde
A disc usually herniates when there is some change or degeneration to the annulus fibrosus that allows the cartilage, with minimal trauma, to enter the spinal canal through a tear in the annular ring. With severe trauma, there does not need to be degeneration to cause the tearing and extrusion.
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