Patients suspected of pancreatitis should be promptly checked for amylase in blood and urine. Because many diseases in the abdominal cavity can cause elevation of amylase, in general, elevation of blood and urine amylase to three times the normal value is more diagnostic. CT examination of the external pancreas is of great value in the diagnosis of pancreatitis. CT can detect changes in the pancreas such as swelling, necrosis, exudation and fluid accumulation, which is an important indication for the confirmation of the diagnosis of pancreatitis and the severity of the disease. Other meaningful diagnostic indicators include: blood lipase, blood calcium, CRP, etc.