A blood amylase test that exceeds normal values needs to be considered for the diagnosis of pancreatitis. Generally acute pancreatitis can be categorized into normal type and necrotic hemorrhagic type, the main symptoms include severe abdominal pain, often sudden onset, cutting or colicky, persistent pain, paroxysmal aggravation, usually attacked after overeating or drinking a lot of alcohol. The location of abdominal pain is more common in the middle of the upper abdomen and the left side of the epigastrium, and it tends to be discharged to the lower back, and can be characterized by a feeling of girdle. Common pancreatitis abdominal pain can be relieved in 3-5 days, necrotic hemorrhagic abdominal pain lasts longer and can spread to the whole abdomen, accompanied by nausea, vomiting, and some patients have fever. Acute pancreatitis can be diagnosed if serum amylase exceeds 500 units, and ultrasound of the liver, gallbladder, spleen, and pancreas is needed to help confirm the diagnosis.