The three liver tests generally refer to the three items of glutamic aminotransferase, glutamic oxalacetic aminotransferase and the ratio of glutamic aminotransferase to glutamic aminotransferase. If the patient’s aminotransferase is elevated, it indicates liver damage and the cause of liver damage should be further investigated. The common causes of liver damage are chronic hepatitis, including chronic hepatitis B and chronic hepatitis C. It is recommended that the patient should be tested for relevant infection markers, in addition to fatty liver, drug-related liver damage, alcoholic liver disease, etc., which may also show increased transaminases. Therefore, it is recommended that patients should further improve the liver function tests, as well as ultrasound or CT or MRI of the liver and gallbladder to further clarify or exclude related diseases, and then give liver protection and enzyme lowering treatment.