Blood amylase more than 900, if there is the presence of abdominal pain, can be diagnosed as acute pancreatitis, but can not determine the severity. The normal value of blood amylase is 35~135 U/L, when the value of blood amylase measurement exceeds the upper limit of normal more than 3 times has diagnostic value. The higher the blood amylase, the greater the value of diagnosis of acute pancreatitis, but blood amylase is not proportional to the severity of acute pancreatitis. Acute pancreatitis is mostly characterized by epigastric pain radiating to the left shoulder; abdominal distension, and abdominal pain that cannot be relieved after vomiting. As the disease progresses, symptoms such as multiple organ failure, systemic infection, and shock may occur. If you find increased blood amylase, you should go to the hospital in time to confirm the diagnosis and carry out treatment as early as possible to prevent the condition from deteriorating.