Possible causes of right lobe of liver occupancy include: bacterial liver abscess, liver cyst, liver cancer, liver metastases, etc. 1. Bacterial liver abscess: Bacterial liver abscess is a form of suppurative infection of the liver, which is mostly caused by the spread of biliary tract infection, or it can be caused by pathogenic bacteria entering the liver through the hepatic artery, hepatic vein and portal vein. 2. Liver cysts: Liver cysts are common benign liver diseases in clinic, which are formed by the cyst wall wrapped with cystic fluid, and can be congenital, parasitic, inflammatory, traumatic, etc. Clinically, congenital is common. It can be congenital, parasitic, inflammatory, traumatic, etc. Congenital cysts are common in clinic. 3. Hepatocellular carcinoma: Hepatocellular carcinoma is the most common malignant tumor of liver, which is closely related to long-term alcoholism, aflatoxin, viral hepatitis, cirrhosis and other factors. 4. Liver metastasis: liver is rich in blood supply, thus it is one of the sites where many malignant tumors are easy to metastasize, especially digestive malignant tumors such as gastric cancer, colorectal cancer, cholangiocarcinoma, pancreatic cancer and so on. It is recommended to go to the hospital as soon as possible to improve the examination and laboratory tests, such as abdominal CT, endoscopy, tumor markers, etc., so as to clarify the nature of liver metastasis in time and treat it accordingly.