When the patient has symptoms of acute abdomen, the diagnosis of "intestinal typhoid perforation" can be considered at that time. In addition, some patients who have symptoms of typhoid fever but have not yet seen a doctor or have not been diagnosed clearly should ask about their medical history in detail. After typhoid patients are perforated, the pulse is accelerated, white blood cells increase, body temperature drops, and abdominal puncture can draw pus. Therefore, it is not difficult to make a diagnosis when it is clear that patients with typhoid fever have acute diffuse peritonitis.