Pancreatitis, as the name implies, is an inflammation of the pancreas Common symptoms include severe pain in the upper abdomen, nausea, and vomiting. One of the important features of the pain is that it can radiate to the lower back. Because the symptoms of pancreatitis are often confused with other acute abdominal conditions such as acute gastroenteritis, peptic ulcer, cholecystitis, intestinal obstruction, and even angina pectoris, patients with similar symptoms should be differentiated to prevent misdiagnosis. There are two main types of pancreatitis: acute mild pancreatitis and acute heavy pancreatitis. Most patients may have mild pancreatitis, which is often cured by fasting and fluid therapy. However, some patients may have severe pancreatitis, which is complex and difficult to treat. If the diagnosis is delayed and the treatment is not appropriate, it often leads to serious complications, such as multi-organ dysfunction or even death. Early treatment of severe pancreatitis, especially at 72 hours of onset, is particularly important for its prognosis and regression! Therefore, patients with abdominal pain must go to a regular hospital for reasonable diagnosis and treatment.