What is a criterion for evacuation due to an abdominal complaint?

Evacuation due to an abdominal complaint is critically considered when there are signs of possible internal bleeding or significant underlying issues. Blood in urine, feces, or vomit indicates potential serious conditions such as gastrointestinal bleeding, kidney issues, or other abdominal emergencies that warrant immediate medical attention.

Severe abdominal pain, while serious, can sometimes be managed in a wilderness setting if accompanied by other signs that do not indicate a major threat. Diarrhea, although uncomfortable and potentially dangerous if it leads to dehydration, is typically not an evacuation criterion unless it is part of a more serious illness. A low-grade fever can also signal an infection, but by itself, it does not usually prompt evacuation related specifically to abdominal complaints unless accompanied by other significant symptoms or systemic issues. Therefore, the presence of blood in urine, feces, or vomit is the most compelling reason for evacuation, as it raises the concern of possible serious internal injury or pathology that needs intervention.