Biochemical indicators of pancreatitis mainly include blood amylase, urinary amylase and blood lipase, which are specific for pancreatitis. If the patient has abdominal pain, mainly in the upper abdomen, and the pain is very severe in nature, persistent or knife-like, it may be considered pancreatitis, and the above-mentioned indicators are needed to further confirm the diagnosis. If the laboratory indicators are >3 times the upper limit of normal value, the patient is generally considered pancreatitis. It is also necessary to draw blood routine, general biochemical routine, liver and kidney function, coagulation routine, etc. to understand the patient’s pancreatic inflammation, whether there is peri-pancreatic necrosis, etc. Further CT of the upper abdomen or enhanced CT of the pancreas is needed to determine whether it is mild pancreatitis or severe pancreatitis, whether there is pancreatic necrosis, etc.