It is a common misconception that intervention is very detrimental to liver function, and primary liver cancer itself has a foundation of cirrhosis, while metastatic liver cancer mostly has no foundation of cirrhosis, therefore, patients with metastatic liver cancer have a lighter reaction after intervention than primary liver cancer. In fact, the amount of drugs and iodine oil entering normal liver tissues during intervention is more than that of primary liver cancer patients because the blood supply to the hepatic artery of metastatic liver cancer is not abundant. Therefore, patients with metastatic hepatocellular carcinoma have a heavier reaction after intervention than primary hepatocellular carcinoma.