If a patient experiences chronic pain due to nerve damage in their foot, what distinguishes the prolonged sensation from acute pain signals after an injury?

💡 Explanation

Chronic pain from nerve damage involves central sensitization because there's amplification of neural signaling within the central nervous system, leading to prolonged pain even after the initial injury heals. Therefore, central sensitization distinguishes chronic from acute pain, rather than immediate fiber activation, increased myelination, or decreased substance P alone.

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