A high sensitivity HBV-DNA of 0 is normal, indicating that there may be no hepatitis B virus in the body or that the level of hepatitis B virus is very low and in an inactive state of replication. High sensitivity HBV-DNA test is a quantitative method to detect the level of hepatitis B virus in the body. Compared with the general HBV-DNA test, the high sensitivity HBV-DNA test has a lower lower limit of detection and a wider linear range. When there is no hepatitis B virus in the body, no matter how sensitive the test is, the hepatitis B virus is usually not detected, and it is normal for the HBV-DNA to be 0. It is also normal for HBV-DNA to be 0 when there is a very low level of Hepatitis B virus in the body and the replication is not active, below the lowest detection limit.