Lumbar herniated disc. The jelly-like center of a lumbar disc can break through the tough outer layer and irritate a nearby nerve root. The herniated portion of the disc is full of proteins that cause inflammation when they reach a nerve root, and inflammation as well as nerve compression cause nerve root pain. The disc wall is also richly supplied by nerve fibers, and a tear through the wall can cause severe pain.
Example: a friend of mine went to the hospital after a motorcycle accident. He’d flown over a car and landed hard on his head. Bizarrely, he was sent home with very little care, and no imaging of his back, even though he was complaining of severe lower back pain. A doctor reassured him that it was just muscle spasms. (This all happened at a hospital that was notorious for being over-crowded and poorly run.) The next day, still in agony, he went to see a doctor at a walk-in clinic, who immediately took him for an x-ray … which identified a serious lumbar fracture and imminent danger of paralysis. He had been lucky to get through the night without disaster! He was placed on a spine board immediately and sent for surgery. The moral of the story? Sometimes, when you’ve had a major trauma and your back really hurts, it’s because your back is broken. BACK TO TEXT