Parietal (peritoneum) pain is best described as:

• A. It originates in the organs themselves
• B. It can be acute or chronic
• C. It is always referred to the back
• D. It has no relation to the peritoneum

Answer: (B)

Parietal peritoneum pain is somatic in origin, so it is sharp, well localized, and tends to be aggravated by movement. This pain reflects irritation of the peritoneum itself, and it can present acutely when irritation begins suddenly (as in acute inflammation or peritonitis) or persist as a localized, chronic pain if irritation continues. This contrasts with visceral pain, which comes from an affected organ and is dull and poorly localized. Thus, describing parietal peritoneum pain as something that can be acute or chronic captures its potential duration and its precise, localized nature.