The specific cause of liver tumor in patients is unknown at present, but it may be related to the following factors: First, for some patients with viral hepatitis, such as chronic hepatitis C and chronic hepatitis B. In this case, due to the long-term poor control of viral hepatitis virus replication, patients may have fibrosis and cirrhosis in the liver, and then malignant tumors in the liver. In addition, if some patients drink and take drugs for a long time, they may also cause malignant tumors in the liver; Moreover, for some patients with severe fatty liver disease, the probability of liver malignancy will also be significantly increased. In addition, for some patients, if they eat foods infected with aflatoxin, the patients have a higher chance of developing malignant tumors in the liver.