Bulge vs. herniation vs. degeneration — the words control the money
A spinal disc is a cushion with a tough outer ring (the annulus) and a gel center (the nucleus). A bulge means the disc sags outward but the ring holds; a herniation means the ring tears and the center pushes out, often pressing on a nerve root. Radiologists use these words precisely, and so do insurance adjusters — a “bulge” report gets priced like soft tissue, while a “herniation with nerve-root contact” report changes the claim class.
The insurer’s favorite counter is degeneration: disc findings are common on MRIs of people with no pain at all, especially with age, so carriers argue your disc looked like that before the crash. The legal answer is the aggravation doctrine — a defendant who injures someone with a vulnerable spine is responsible for the harm actually caused. What wins the argument in practice is chronology: no prior symptoms, a traumatic event, immediate and consistent symptoms afterward, and a treating physician willing to connect them.