The five tests for hepatitis B revealed that items two, four and five were positive, which are positive for surface antibody, e antibody and core antibody for hepatitis B, respectively. The main reason is that the patient has been infected with the hepatitis B virus before, but is now in a cured state. The majority of people who are not particularly young when they first become infected with hepatitis B will not become chronic hepatitis B patients, but will clear the hepatitis B virus and become cured, and this is when the five items of hepatitis B will show such results. The second hepatitis B surface antibody is a sign of having acquired immunity to the hepatitis B virus. However, the results of the five hepatitis B tests alone do not completely rule out the possibility of currently being a hepatitis B patient. This is because there are some people for whom testing for DNA of the hepatitis B virus is also able to detect it. If you want to completely rule out the possibility that you have hepatitis B, you can further check the DNA quantification of the hepatitis B virus. In addition, in the case of two, four or five positive cases, the hepatitis B virus can still be detected in the blood of some people, so such people cannot donate blood.