How long does acute pain last?

• A. Less than 3 months
• B. Exactly 3 months
• C. More than 6 months
• D. Indefinitely

Answer: (A)

Acute pain is a short-term response to tissue injury that signals something is wrong and is expected to subside as healing occurs. Because healing from most injuries or surgeries takes days to weeks, acute pain is defined by a brief duration—typically lasting less than about 3 months. If pain extends beyond the healing period, it moves into the chronic category, which involves different mechanisms and management. So the best answer reflects this brief timeframe: pain that lasts less than 3 months. Pain lasting longer—such as exactly 3 months, more than 6 months, or indefinitely—fits the definition of chronic or persistent pain rather than acute.