Liver hardness test is a non-invasive test for the diagnosis of liver fibrosis, and some scholars have compared it with liver puncture and found that its accuracy is relatively high, but it cannot reach 100% accuracy, and there are times when it is misdiagnosed, and it may be affected by the following factors: i. When there is inflammatory activity in the liver, especially when the jaundice index is greater than 50 μmol/L or more, the heavier the inflammatory reaction, the greater the liver hardness The greater the value; second, influenced by diet. It is recommended that the test be performed on an empty stomach or 3 hours after a meal to be more accurate; third, the influence of alcohol, so you should stop drinking for 1 week before testing; fourth, if there is fatty liver or ascites will also affect the value, resulting in large values; fifth, the influence of the operator’s experience, different operators at the same time on the same patient testing, the phenomenon of deviation in values is common. Although it does not correspond 100% to the situation of liver hardness, it is still a relatively useful reference indicator in clinical practice in general.