Glutamyltransferase 120U/L is relatively serious, the value has exceeded more than twice the normal value, suggesting liver function damage, need to find the cause of the disease as soon as possible, and treatment. Glutamyltransferase, abbreviated as GGT, is an indicator for monitoring liver function. Under normal circumstances, it should be less than 50 U/L, and more than twice (100 U/L) suggests possible liver injury, which may be drug-induced liver injury or primary hepatobiliary system diseases such as viral hepatitis. If you find that glutamyl transferase is elevated, you should go to the hospital to find out the cause of the disease. If it is drug liver injury, you should reduce the dosage or combine the liver-protecting treatment under the guidance of the doctor; if it is a lesion of the liver itself, you should treat the primary disease.