bulging disc

Bulging disc also know as a spinal disc herniation (prolapsus disci intervertebralis), informally and misleadingly called a "slipped disc", is a medical condition affecting the spine, in which a tear in the outer, fibrous ring (annulus fibrosus) of an intervertebral disc (discus intervertebralis) allows the soft, central portion (nucleus pulposus) to bulge out. Tears are almost always posterior-ipsilateral in nature due to the presence of the posterior longitudinal ligament in the spinal canal.


Bulging disc or spinal disc herniationis normally a further development of a previously existing disc protrusion, a condition in which the outermost layers of the annulus fibrosus are still intact, but can bulge when the disc is under pressure.

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