Glutamyl transpeptidase is found in hepatocyte membranes and microsomes and is involved in the metabolism of glutathione. When extrahepatic bile duct and intrahepatic obstruction occurs, it causes obstruction of glutamyl transpeptidase excretion and abnormal serum glutamyl transpeptidase. The normal value of glutamyl transpeptidase is 3-50 U/L, and glutamyl transpeptidase 110 U/L is high. Elevated glutamyl transpeptidase is usually indicative of alcoholic liver disease, non-alcoholic fatty liver, drug-related liver damage, etc. It is also seen in other diseases such as emphysema and cholestatic liver disease. In addition, glutamyl transphthalase may also be mildly elevated if the patient is in acute hepatitis and in the active phase of chronic hepatitis. If the glutamyl transpeptidase reaches 110 U/L, which is already higher than the normal value, it is advisable for the patient to go to a regular hospital for rechecking after a week to ensure the accuracy of the test result. If it is a simple glutamyl transpeptidase reaching 110U/L with no related symptoms or other indicators of abnormality, generally no medication is needed, removing the causative factors can be done, such as quitting alcohol and stopping related medications. If the glutamyl transpeptidase is high due to pathological cause, the main treatment is to target the cause, such as actively treating cholestatic liver disease, which can be done by using Eusebio.