Ultrasound is the most common diagnostic imaging method in modern medicine, and has an important role in the diagnosis of liver disease. Ultrasound is like a detection “radar”, which can play an auxiliary diagnostic role for the degree of liver damage and the presence of substantial lesions. However, there are many medical terms on the ultrasound report, such as “strong echo” and “diffuse”, which are often confusing to people. It is helpful to understand the following common terms to read the report card. 1. Abnormal echogenic areas. In normal liver parenchyma, the echogenicity is low with small dots and evenly distributed. If there is an occupying mass on the liver, the ultrasound will suggest an abnormal echogenic zone. If the echogenicity of the liver is uneven, it indicates possible fatty liver and liver fibrosis; if there is a strong echogenic area, it indicates that there may be bile duct stones and calcification foci in the liver, which are usually not serious; if the strong echogenicity is rich in blood vessels at the same time, there is a high possibility of hemangioma; if it indicates a non-echogenic area, there is a high possibility of liver cyst; if it indicates hypoechogenicity in the liver, its internal echogenicity is uneven and the boundary is not clear, it may be related to tumor, etc.; if it indicates multiple hypoechoic areas, it is important to suspect whether it is liver metastasis of gastrointestinal tumor. Once abnormal echogenicity is detected, it is necessary to go to a large hospital to review the ultrasound or to do further enhanced CT or MRI to understand the nature of the mass. 2. Marginal shape change. The edges of normal liver tissue are smooth and neat. If there is cirrhosis, in addition to uneven echogenicity, ultrasound will suggest that the surface of the liver is not smooth, the edges are blunt, and even the liver has atrophy. If chronic hepatitis is prolonged, an increase in liver volume is seen under ultrasound. 3.Diffuse liver damage. Various chronic liver diseases, such as viral hepatitis, fatty liver, liver fibrosis or few normal elderly, ultrasound will suggest chronic diffuse liver damage. This finding often makes patients very pessimistic. In fact, this expression only indicates the presence of chronic hepatitis, not a sign of severe disease. The severity of liver disease can only be determined by looking at several indicators, including liver function, and combining them with clinical manifestations.