Having had hepatitis B before and now being well is a phenomenon that may be seen. It may be an acute hepatitis B infection, because the hepatitis B virus is not able to become chronic when it infects an adult, the body’s immune system will clear out the hepatitis B virus and the liver cells that the hepatitis B virus infects will be destroyed, so this is a case of acute infection. In the case of a chronic hepatitis B patient, it is equally possible to have a state of hepatitis B healing, but this is not through treatment, but through a very small probability of hepatitis B healing itself. To determine this, it is necessary to check the quantification of the five hepatitis B items. If the surface antigen of hepatitis B becomes negative and the surface antibody of hepatitis B becomes positive, it is basically determined that the person is now well. Also need to check the hepatitis B virus DNA quantification, if the high sensitivity of this test is not to check the hepatitis B virus DNA molecules, can also assist in determining the current is a healed state.