A gamma-glutamyltransferase of 1100 U/L is generally very serious. The normal value of gamma-glutamyltransferase is 0-40 U/L, but the value measured is 1100 U/L, which is seriously beyond the range of normal values, so this condition is relatively serious. Elevated γ-glutamyltransferase can be caused by poor lifestyle habits, fatty liver, biliary obstructive disease, etc. Generally, the higher the value of the test, the more serious the degree of liver damage. When γ-glutamyltransferase is found to be high, it is recommended to carry out liver ultrasound, liver CT and other relevant examinations, and also need to combine with other clinical symptoms and liver function, to clarify the cause of the disease and formulate corresponding treatment programs. After treatment, liver function should be reviewed regularly, and more attention should be paid to the intervention of daily life to maintain liver function within the normal range. It is recommended that when γ-glutamyltransferase 1100U/L occurs, consult a doctor in time, clarify the diagnosis and then treat the cause of the disease.