The value of liver stiffness is used to reflect the degree of fibrosis in the liver and the presence of cirrhosis by ultrasound techniques. The normal range is 2.8-7.4 KPa. When the liver stiffness value reaches 8.8 KPa, it indicates that there is a certain degree of fibrosis in the liver, but it is not very serious, and if the causes can be removed and treated reasonably, the liver stiffness value may decrease. However, there are many clinical diseases that cause elevated liver stiffness, some of which can be cured clinically and the liver stiffness can return to normal, such as alcoholic liver disease and fatty liver. Some diseases can only delay the progress of liver fibrosis, such as hepatitis B and C, and may eventually lead to the formation of cirrhosis, and the liver hardness number will continue to rise. Therefore, the severity of the disease cannot be judged by the value of liver stiffness alone, but needs to be evaluated in combination with clinical symptoms and relevant ancillary tests. In addition, because the value of liver stiffness is affected by various factors such as hepatitis activity, cholestasis, hepatic venous stasis, etc., dynamic observation is sometimes required to determine the degree of liver fibrosis.