A herniated disc occurs when the outer fibers of the disk are damaged and the soft inner material of the nucleus pulposus bursts out of where it anatomically belongs. If the fibers tear near the spinal canal, the nucleus pulposus material can push into the spinal canal. Because the thoracic area is clearly not capable of this a thoracic herniation can be very serious. There is very little room for the herniation to go so therefore it can push or damage the spinal canal or cord. The most common test used today to diagnose a herniated disc is for the person suffering to have an MRI. Pain medicine can be prescribed, however surgery is sometimes the only option.
Daisy
Information found at http://www.umm.edu/spinecenter/education/herniated_thoracic_disk_htm
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