Which classification describes pain that persists long after tissue healing is complete?

• A. Acute
• B. Episodic
• C. Chronic
• D. Transient

Answer: (C)

Chronic pain describes pain that continues long after the tissues have healed. Normally, pain signals rise with tissue injury but fade as healing occurs. When they persist beyond that healing window, the nervous system has entered a different state—often involving changes in how pain is processed (central sensitization) and sometimes ongoing, non-urgent pain signaling without active tissue damage. This distinguishes it from acute pain, which is tied to an injury and resolves as healing finishes. It also differs from episodic pain, which occurs in bursts, and from transient pain, which is brief. Knowing this helps explain why some pains linger and require approaches beyond simply treating tissue injury, such as broader pain management strategies.