Liver parenchymal echogenicity can be seen in a variety of diseases, such as fatty liver, viral hepatitis, cirrhosis and so on. 1. Fatty liver: it is a kind of lesion caused by excessive accumulation of fat, which can be caused by high-calorie diet, alcohol consumption and other factors. The main symptoms may be decreased appetite, sleep disorders and so on. Imaging examination shows that the liver parenchyma is dense with enhanced echogenicity, and the intrahepatic duct structure is not clear. 2. Viral hepatitis: it is a kind of hepatitis disease caused by hepatitis virus, mainly caused by viral infection. Imaging examination can see dense echogenicity of liver parenchyma, enlarged liver, and so on. 3. Cirrhosis: it is a kind of disease caused by extensive necrosis of liver cells, which can be caused by viral hepatitis and chronic alcoholic liver disease. The main symptoms can be seen as ascites, jaundice and so on. Imaging examination shows that the surface of the liver is uneven and the liver parenchyma is echogenic. If there is dense echogenicity of the liver parenchyma, you should go to the hospital in time for further hospital-related examinations to clarify the cause of the disease and actively cooperate with the doctor’s treatment.