Alanine aminotransferase refers to alanine aminotransferase, and the normal reference value is 0~40U/L. The higher level of alanine aminotransferase 100U/L is mostly seen in physiological reasons, fatty liver, viral hepatitis, etc., which need to be targeted to take general treatment and medication to relieve. 1. Physiological reasons: it may be caused by strenuous exercise or dietary factors, generally after adjusting diet or rest, ALT will gradually return to normal, and no special treatment is needed. 2. Fatty liver: mild fatty liver is mainly controlled by adjusting the diet, daily intake of calories and at the same time pay attention to strengthen the exercise, moderate and severe fatty liver need to take drugs to protect the liver and reduce enzymes, such as reduced glutathione, ursodeoxycholic acid and so on. 3. Viral hepatitis: it is a common cause of elevated gammaglutamyltransferase, which needs to take liver-protecting and enzyme-lowering drugs, and also needs to cooperate with antiviral drugs, such as entecavir, tenofovir, etc. The above drugs should be under the guidance of professional physicians. The above drugs should be used under the guidance of professional physicians. The cause of elevated ALT should be further examined and treated under the guidance of a medical professional.