How to diagnose pancreatitis, because the onset of pancreatitis is rapid and dangerous, it is clinically important to be able to diagnose pancreatitis quickly for the next step of patient treatment. The diagnosis of pancreatitis mainly relies on the combination of abdominal symptoms, laboratory results and imaging examinations to finally confirm the diagnosis. 1, symptoms and signs pancreatitis patients abdominal pain is mostly found in the upper abdomen to the left of the center, severe acute pancreatitis patients abdominal pain can spread to the whole abdomen, accompanied by the left side of the back swelling and discomfort, some patients can appear fever, jaundice and other discomfort. 2, laboratory results of pancreatitis patients by checking blood, urine amylase, blood lipase can be found indicators significantly elevated, including blood amylase often begins to rise 2 hours after the onset of the disease, can be maintained for 4-5 days, blood amylase should be more than 3 times normal to have diagnostic value. In patients with severe acute pancreatitis, blood calcium can drop significantly below 2.0 mmol/L, often indicating a poor prognosis. In addition, the patient’s blood glucose index can be significantly increased, and if the patient’s blood glucose exceeds 11mmol/L, it indicates extensive necrosis of the pancreas, which indicates a serious condition. 3. Imaging examination of abdominal ultrasound can reveal diffuse enlargement of the pancreas and necrotic exudation around the pancreas when the condition is severe. CT can fully evaluate the degree of pancreatic necrosis, the extent of peripancreatic exudate and the prognosis.