Liver injuries often result from blunt or penetrating trauma. The AAST liver injury scale plays a crucial role in categorizing these injuries, guiding treatment decisions, and predicting outcomes.

   The AAST liver injury scale was developed by the American Association for the Surgery of Trauma (AAST) to standardize the classification of liver injuries. This scale is essential in trauma care, helping healthcare professionals communicate the severity of liver injuries and determine the appropriate treatment strategy. The scale grades liver injuries from I to VI, with each grade reflecting increasing severity and complexity.

     Severity is assessed according to the depth of renal parenchymal damage and involvement of the urinary collecting system and renal vessels.

Spleen injuries are among the most frequent trauma-related injuries.