Disc Herniation Vs. Disc Bulge
A Human disc can be described as a jelly donut. The soft jelly like center part of the disc is called the nucleus pulposus. The outer, strong fiberous part of the disc called the annulus.
The annulus is like the bread the holds the jelly in place in a donut. Like a jelly donut, if pressed, the “Jelly”, or nucleus will come out of the hole in the bread, or a break in the annulus. The jelly can irritate the nerves and tissues in the spine.
This is very different from a disc bulge.
The disc bulge process is more like the car tire. Over time, the air in the car tire slowly leaks out. When that happens, the side walls of the car tire bulges out because of the decreased pressure. In a disc bulge, the central portion of the disc, the nucleus dries out over time. The pressure from the disc material decreases, and the side walls of the disc bulges out. This is a gradual process.
Disc herniations are very different from disc bulges. Please do not interchange those terms.
Last modified: September 26, 2019