Something growing on the liver should be examined systematically, specifically including benign and malignant diseases. Malignant diseases are mainly tumors, divided into primary liver cancer and metastatic liver cancer, and patients will also have pain in the liver area, and enhanced CT examination of the liver should be performed, which can further clarify the site, scope, size, and relationship with adjacent anatomy of the lesion. If the condition allows, radical resection surgery should be selected for early treatment. Metastatic liver tumors should be treated for the primary disease, while for liver lesions, depending on the malignancy of the primary tumor and guideline principles, stage I or stage II surgery can be performed as appropriate. For those who are difficult to resect, they can be treated by systemic intravenous chemotherapy, intervention, radiofrequency ablation, targeting, immunization, etc. During the treatment period, it is also important to monitor the changes of liver function indicators, cooperate with liver-protective treatment and increase the diet nutrition appropriately.