Secondary liver cancer includes metastatic liver cancer and metastatic hepatic sarcoma, and primary tumors mainly include colorectal cancer, gastric cancer, pancreatic cancer, lung cancer, breast cancer and so on. There are more types of primary tumors causing tumor metastasis, mainly colorectal cancer, gastric cancer, pancreatic cancer, gastric cancer, intestinal smooth muscle sarcoma, etc. Liver metastasis can also occur in lung cancer, breast cancer, renal cancer, cervical cancer, ovarian cancer, prostate cancer, and head and neck tumors. When metastatic liver tumor is small in size, it usually has no obvious symptoms and is often found during imaging examination. As the tumor gradually increases in size, abdominal pain or discomfort in the liver area can occur, as well as fever, fatigue, weight loss and other symptoms. When secondary liver cancer occurs, it should be actively consulted and treated for the primary disease and metastatic lesions.