When GGT is 100U/L, it may recover by itself. GGT mainly refers to gamma-glutamyltransferase, and the general normal range is 0~50 U/L. High GGT may be caused by biliary obstructive diseases such as primary biliary cirrhosis, sclerosing cholangitis, and other biliary tract obstructive diseases, liver diseases such as fatty liver, hepatitis, cirrhosis, and hepatocellular carcinoma, as well as pancreatitis, pancreatic tumors, and prostate tumors, or it may be due to physiologic Factors. When GGT is 100 U/L, if it is caused by physiological factors such as uncontrolled diet, strenuous exercise, pregnancy, etc., it can be normalized without treatment by adopting good living habits and daily dietary adjustments. If it is due to pathological factors, it is necessary to find out the cause of liver injury and give targeted treatment to restore normal. There are many reasons for GGT elevation, so it is necessary to actively consult a doctor to find out the cause as soon as possible and carry out appropriate treatment under the guidance of the doctor.