Hepatitis B two halves can not reflect whether the liver function is normal or not, they are two different tests. Hepatitis B two halves mainly include: hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs), hepatitis B e antigen (HBeAg), hepatitis B e antibody (anti-HBe), hepatitis B core antibody (anti-HBc), a total of five items. Hepatitis B 2.5 is a serologic marker for detecting the hepatitis B virus in the blood. Different combinations of the five hepatitis B tests are commonly used clinically to determine the status and regression of infection. Liver function generally includes bilirubin, albumin, globulin, aminotransferase, r-glutamyl transpeptidase and other indexes, which are used to determine whether there is any disease in the liver, the degree of liver damage, as well as to identify the causes of liver disease, judge the prognosis and identify the causes of jaundice. Therefore, hepatitis B two half and liver function belong to two different tests, hepatitis B is only one of the causes of liver damage, hepatitis B two half normal can not exclude other causes of liver function abnormalities, liver function is normal does not mean that there is no abnormality in hepatitis B two half. Hepatitis B two half and liver function are both important routine means of examination, it is recommended to follow the doctor’s instructions to improve the examination, to avoid missed diagnosis and misdiagnosis, delayed condition.