A bulging disc differ from a herniated disc as follows:
The intervertebral disc is a gelatinous structure that allows the flexibility of the spine and acts as a shock absorber, each disc is made up of two elements: the nucleus pulposus and a fibrous ring that surrounds it.
Repeated inappropriate pressure or movement can cause the ring to wear out, resulting in an alteration in the nucleus.
A bulging disc occurs when a damaged disc compacts and pushes back into the spinal canal.
That is, the disc loses its shape and moves out of its normal position to the spine due to pressure from the disc nucleus.
On the other hand, a herniated disc would appear when this wear involves the rupture of the annulus and, therefore, the migration of the nucleus, generating compression in the adjacent structures:
Unlike a herniated disc condition, in bulging discs there is no tear or rupture on the tough exterior.
Therefore, we can conclude that a bulging disc happens when the disc loses its shape and moves out of its normal position and a herniated disc involves the rupture of the annulus.
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