Gamma-aminotransferase should be γ-glutamyltransferase (GGT, γ-GT ), high γ-glutamyltransferase is mainly seen in hepatobiliary diseases, such as viral hepatitis, alcoholic hepatitis and alcoholic cirrhosis, intra-hepatic or extra-hepatic biliary obstruction and so on. 1. Viral hepatitis: mainly infected with virus, patients will have fever, fatigue, loss of appetite, pain in the liver area, it is recommended to go to the hospital to do biochemical examination and hepatitis viral markers test, after diagnosis under the guidance of the doctor can take aciclovir, famciclovir antiviral treatment. 2. Alcoholic hepatitis and alcoholic cirrhosis: Liver damage caused by long-term excessive drinking, cellular steatosis causing hepatitis. Therefore, patients should quit drinking in time, give nutritional support and develop good living and dietary habits. 3. Intrahepatic or extrahepatic bile duct obstruction: when gallbladder and hepatic bile duct stones or infections cause hepatic bile duct obstruction, γ-glutamyltransferase excretion is blocked, and bile flows back into the bloodstream, resulting in the rise of serum γ-glutamyltransferase. In addition to the above causes, liver cancer, myocardial infarction, acute pancreatitis and certain drugs can make the blood GGT rise, such as GGT rise, it is recommended to consult a doctor in a timely manner, complete the relevant examinations, make a clear diagnosis, and actively treat to improve liver function and reduce transaminases, so as to avoid delaying the condition.