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What is the average age for disc degeneration?

By age 20, 37% of people already show signs of disc degeneration on imaging, with this prevalence increasing significantly with age. This makes answering the question, "What is the average age for disc degeneration?", more complex than a single number, as it is a slow and progressive condition that begins much earlier than most people realize. However, it is important to remember that the presence of degeneration does not always mean symptomatic pain.