Liver function tests can clarify the presence or absence of liver cell damage, as well as secondary liver function changes. Whether the disease is medical, surgical, benign or malignant disease of the liver, or other organ lesions that cause liver function damage, it can manifest as abnormal liver function. The most common of these diseases include hepatobiliary stones, various types of hepatitis, such as viral hepatitis, as well as cirrhosis, biliary stasis, hepatobiliary tumors, and various mid- to late-stage tumors causing hepatocellular abnormalities, liver function damage, alcoholic liver, fatty liver, and liver function abnormalities caused by organismal dysfunction due to body dysfunction.