Bulging and herniated disks

Original Article:  http://www.mayoclinic.com/health/medical/IM02155
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Bulging and herniated disks

An illustration comparing a bulging disk with a herniated disk.

A bulging disk is one in which the tough outer layer of the disk bulges into the spinal canal. A herniated disk is one in which the disk has cracked and some of the soft inner part has leaked out.
IM02155

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