Screening methods for cirrhosis: a. Ultrasound examination of the liver may reveal liver volume reduction, surface heterogeneity, hepatic envelope irregularity, lobe disproportion, hepatic parenchymal echogenicity, and sometimes hypoechoic nodules as well as enlarged spleen and widened portal vein internal diameter. The above imaging features can also be seen on CT and MRI scans of the liver, such as disproportionate liver lobes, reduced liver volume, and enlarged spleen. Third, liver transient elastic stiffness test, which can diagnose cirrhosis when the value of this test is greater than 17.5KPa. Fourth, liver puncture biopsy is the gold standard for the diagnosis of cirrhosis. Liver puncture reveals that the normal lobular structure of the liver is destroyed and replaced by pseudo lobules with proliferation of fibrous connective tissue, which is a characteristic manifestation of cirrhosis. Fifth, if esophagogastric fundic varices appear in the decompensated stage of cirrhosis, the esophagogastric fundic varices are visible through gastroscopy, with bead-like changes.