Multiple solid occupations in the liver means that a substantial lesion has formed in the liver and such lesions are multiple and more than two in number. Possible causes of multiple solid occupations in the liver include primary liver cancer, liver metastases, benign liver tumors, hepatic sarcoma, and so on. 1. Primary hepatocellular carcinoma: including hepatocellular carcinoma, intrahepatic cholangiocarcinoma, mixed hepatocellular carcinoma, hepatoblastoma and so on. 2. Liver metastases: refers to occupying lesions formed by malignant tumors from other parts of the body that have metastasized to the liver, which are common in malignant tumors of the digestive system, such as gastric cancer, cholangiocarcinoma, colorectal cancer, pancreatic cancer and so on. 3. Benign liver tumors: benign liver tumors are relatively rare, including inflammatory pseudotumor, hepatic hemangioma, hepatic adenoma, hepatic lipoma and so on. 4. Hepatic sarcoma: Hepatic sarcoma refers to malignant tumors located in the liver and originated from mesenchymal tissues, which are very rare clinically, including hepatic hemangiosarcoma, hepatic rhabdomyosarcoma, liposarcoma and so on. It is recommended to go to the hospital as soon as possible for diagnosis of substantial space occupation in the liver, so as to clarify the nature of space occupation as soon as possible, and then give targeted treatment.