Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.
Spinal discs
Spinal discs are located between each of the 33 vertebrae, which are the interlocking bones of the spine that are stacked on top of one another. These discs act as shock absorbers for the spine and allow it to flex, bend, and twist.
The outer portion of a spinal disc, called the capsule (annulus fibrosus), is made of tough, elastic cartilage. The capsule surrounds a mass of jellylike material called the nucleus (nucleus pulposus).
Aging, injury, and illness can cause the spinal discs to crack or rupture. The jellylike nucleus can leak out, which can irritate or put pressure on the spinal nerves. Pain, numbness, and weakness may result, and sometimes surgery is needed.
Spinal discs are also called intervertebral discs.
Current as of: November 9, 2022
Author: Healthwise Staff
Medical Review:William H. Blahd Jr. MD, FACEP - Emergency Medicine & Adam Husney MD - Family Medicine & Steven J. Atlas MD, MPH - Internal Medicine
This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use and Privacy Policy. Learn how we develop our content.
To learn more about Healthwise, visit Healthwise.org.
© 1995-2023 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.