
An acute abdomen is sudden, severe abdominal pain indicating a potentially life-threatening condition, often requiring urgent evaluation and sometimes surgery, with common causes including appendicitis, pancreatitis, cholecystitis, obstructions, and ruptured aneurysms. Symptoms include intense pain, nausea, vomiting, and guarding, while diagnosis relies on history, exam, blood tests, and imaging. Management involves stabilizing the patient, identifying the cause, and prompt, often surgical, intervention for serious issues like bleeding or perforation, as delays increase mortality.