The normal value of urinary amylase measured by Wen’s method is generally in the range of 8-32U/L, and the normal value of urinary amylase measured by Su’s method is generally in the range of 80-300U/L. So in addition to excluding human factors and instrumental factors in the measurements, the amylase urinary amylase 523U/L is not normal. Amylase is mainly synthesized by the pancreas and salivary glands. Under normal circumstances, most of the amylase is secreted into the digestive tract to play a digestive function, and a small amount of amylase enters the bloodstream, because amylase has a small molecular weight and is easy to be discharged through the urine, so there will be a small amount of amylase in the urine. Acute pancreatitis, chronic pancreatitis acute attack, pancreatic tissue is destroyed, can lead to increased release of amylase, so the urine amylase will have a significant increase, more than the normal value. In addition, mumps, peptic ulcer with perforation, and even some gastroenteritis may cause elevation of urinary amylase, but tend to show mild elevation. When urinary amylase is elevated, it is recommended to seek medical attention to identify the cause of the disease and to provide targeted treatment.