The laboratory result of alanine aminotransferase is 98 U/L, which is more than twice the normal value, as the normal reference range is 0-40 U/L. This condition is also serious and should be treated systematically with intravenous liver protection. Commonly, it is caused by chronic liver disease, especially during the acute attack of viral hepatitis, the patient will have obvious pain in the liver area, abdominal distension, weakness, discomfort, loss of appetite, and even yellow staining of the skin or sclera, and should be given antiviral and liver-protective treatment and monitored for changes in liver function indicators. In addition, it can be caused by drug-related hepatitis, especially in patients with malignant tumors, and liver damage can easily occur during intravenous chemotherapy, and the common manifestation is the increase of transaminases. Therefore, symptomatic treatment should be actively carried out, and if necessary, the drug should be stopped, and the patient should be advised to eat more high-protein foods and vitamin-rich foods.