Hepatitis B virus core antibody is the fifth indicator in the five tests of hepatitis B virus, which generally indicates that the human body has been infected with hepatitis B virus or is in the recovery period of acute infection. Hepatitis B virus core antibody mainly represents whether the human body has been infected with hepatitis B virus or not, and the antibody typing is generally divided into two types: IgM and IgG. IgM positive indicates that the body is in the early stage of viral infection, and IgG positive indicates that the human body has been infected with the virus in the past, and when the human body has been infected with the hepatitis B virus, the core antibody of the hepatitis B virus will be firstly appeared in the blood serum. Clinically, we usually choose hepatitis B five tests to screen for hepatitis B virus infection. When hepatitis B core antibody is positive, it is also necessary to combine with other four indicators to determine whether the person is a carrier of hepatitis B virus, and if the person is a carrier of hepatitis B virus, it is necessary to further check the quantitative quantification of hepatitis B virus DNA to determine the infectiousness of the infectiousness of the person. If the hepatitis B core antibody is positive, you should consult the doctor for further diagnosis and treatment under the doctor’s guidance, and if necessary, improve the hepatitis B five tests and hepatitis B DNA quantitative tests, and then make a comprehensive evaluation according to the results.