Gamma-glutamyltransferase 63 U/L represents a mildly elevated result. It can be caused by physiologic or pathologic reasons. If it is caused by physiological reasons, it is not considered serious, if it is caused by pathological reasons, it is more serious. 1. Physiological reasons: γ-glutamyltransferase is mainly found in the gallbladder, liver, pancreas, kidneys and other parts of the body. The normal reference value for men is 10 to 60 U/L, and for women it is 7 to 45 U/L, and the reference value may not be exactly the same when the instrument is different. Drugs, staying up late and fatigue, taking greasy food and other triggers caused by γ-glutamyl transferase 63U / L is considered to be physiological causes, remove the triggers can generally return to normal, so it is considered not serious. 2. Pathological causes: viral hepatitis, cirrhosis, fatty liver, pancreatitis, cholecystitis and other diseases, may lead to liver cell destruction of γ-glutamyl transferase 63U / L phenomenon, if the above diseases, it may be more serious. If γ-glutamyltransferase 63U/L occurs, you can go to check the abdominal ultrasound, CT, lipase, amylase and other items in order to find the cause.