Gamma-glutamyl transpeptidase 100 U/L is on the high side. Gamma-glutamyl transpeptidase is widely distributed in human tissues, and the value of gamma-glutamyl transpeptidase in serum is an important indicator for detecting hepatobiliary diseases; the normal range of gamma-glutamyl transpeptidase is 11~50 U/L for men, and the normal range of gamma-glutamyl transpeptidase is 7~32 U/L for women, therefore, gamma-glutamyl transpeptidase 100U/L is high. Elevated γ-glutamyl transpeptidase is often indicative of hepatobiliary diseases such as alcoholic liver disease, autoimmune liver disease, extrahepatic bile duct obstruction, etc. It can also be seen in other diseases such as pancreatitis, pancreatic cancer and prostate cancer. It is recommended to go to the hospital for medical consultation when the gamma-glutamyl transpeptidase value is elevated, so that the doctor can make a judgment based on the specific situation and further clarify the cause of the disease.