The alanine aminotransferase 57U/L is a mild elevation, can be reviewed liver, gallbladder, pancreas and spleen ultrasound, hepatitis B two-half, hepatitis C antibody, electrocardiogram, cardiac ultrasound, routine blood tests and other tests. 1. Color ultrasound of liver, gallbladder, pancreas and spleen: high alanine aminotransferase may be caused by fatty liver, alcoholic liver, hepatitis, cholecystitis, cholelithiasis and other diseases, so it is feasible to do color ultrasound of liver, gallbladder, pancreas and spleen to understand the morphology of the liver and the change of the density, so as to clarify the specific causes of the disease. 2. Liver function tests: it is necessary to improve the liver function tests such as glutamic transaminase, total bilirubin, albumin, etc., so as to clarify whether there is any damage to liver cells and the severity of liver injury. 3. Hepatitis B half-pair, hepatitis C antibody: to know whether there is hepatitis B and hepatitis C virus infection. 4. Cardiac ultrasound and electrocardiogram: to find out whether it is caused by heart disease, such as heart failure. 5. Blood routine: fever can cause the rise of ALT, and blood routine examination can know whether there is bacterial infection. It is recommended to consult a doctor as soon as possible when the glutamic acid transaminase is high. Under the guidance of a professional doctor, the next checkup plan should be clarified, and the cause of the disease should be identified and timely treatment should be carried out.