Enlargement of the left lobe of the liver is usually caused by cirrhosis, and may also be caused by inflammation or tumor. 1. When liver lesions will affect the normal metabolic activity of the body, you can go to the hospital for relevant examinations, such as liver function, AFP, etc., through a variety of indicators to understand the condition, when the left lobe of the liver is enlarged is generally due to cirrhosis of the liver, after identifying the cause of cirrhosis to give the corresponding treatment, such as hepatitis B can be used to adopt the nucleoside analogs, such as entecavir and so on. 2. Inflammation of the liver may lead to the enlargement of the left lobe of the liver, for which the patient should be instructed to adopt a good daily routine and use some hepatoprotective drugs, such as compound glycyrrhizin, reduced glutathione and so on. 3. Occupation of liver tumors can lead to enlargement of the left lobe of the liver, including primary hepatocellular carcinoma, secondary hepatocellular carcinoma, hepatic hemangioma and so on. The medication should be administered under the guidance of a doctor and should not be used without authorization. It is recommended to actively consult the doctor, improve relevant examinations, and standardize treatment after clear diagnosis.