Acute abdomen: it is a group of abdominal diseases with acute abdominal pain as the prominent manifestation, requiring early diagnosis and timely management. It is characterized by rapid onset, rapid progress, many changes and heavy conditions, and once the diagnosis is delayed and the treatment measures are inappropriate, it will bring serious consequences or even death to patients. Therefore, the correct diagnosis and differential diagnosis of acute abdominal disease plays a decisive role in the treatment effect and regression of each patient with acute abdominal disease. Acute abdominal pain is the most common symptom in surgery and should be given high priority by every first-time physician.