Liver stiffness testing uses ultrasound technology to detect the degree of fibrosis in the liver, which is more accurate than general imaging, but sometimes the results are susceptible to errors due to inflammation of the liver. Liver hardness test, also known as instantaneous liver elasticity measurement, works by using liver elasticity testing equipment to emit pulsed elastic waves to detect liver hardness and fibrosis, and the hardness and elasticity of liver tissues are rated by the value of the test, which can indirectly reflect the degree of liver fibrosis. The accuracy of the test is not as high as that of pathological liver puncture, but it is higher than that of liver ultrasonography and imaging tests such as liver CT, and it is widely used in the clinic for the early diagnosis of liver fibrosis because of its non-invasive operation. Although the accuracy of liver hardness test is relatively high, it is easily affected by other factors, and when there is cholestasis in the liver and inflammation of liver tissues, the accuracy of the test value may be affected. Therefore, the specific value of liver hardness test may not be able to fully reflect the real condition, and it is necessary to consider liver ultrasonography, liver function tests, liver fiber four tests and other comprehensive analysis to make accurate judgment in the clinic.