Spinal disc herniation is what?

Disc Bulge: A disc herniation is a bulge of the disc. The position of the disc bulge/herniation and its impact on the spinal cord or nerve root that is important. Think of the disc as a tube of toothpaste with a hole, the tube as the annulus or outside of the disc and the paste as the nucleus, the inside of the disc. With a hole in the tube the paste begin to ooze out just like the disc nucleus.

Symptom Vs Cause: A disc herniation causes sciatica, which is a symptom of back & leg pain caused by a disc herniation or narrowing where the nerve exits the spine. A disc herniation is a outpouching of the disc from its normal place into the spinal canal or on the nerve and can be a source of pain in the back or down the leg, .