Normal reference values for Hepatitis B Virus DNA Quantification are <50cps/ml or <1000cps/ml for normal quantification and <15IU/ml for highly sensitive quantification. The range of normal values for hepatitis B virus DNA quantification varies depending on the testing instrument, method and reagent. Clinically, it is categorized into ordinary quantitative and highly sensitive quantitative tests. The normal value range for ordinary quantitative is <50cps/ml or <1000cps/ml, and the normal value range for highly sensitive quantitative is <15IU/ml. Hepatitis B DNA test is a test indicator to check how much Hepatitis B virus is replicated and to clarify whether it is infectious or not. The degree of DNA replication does not represent the actual degree of liver damage, and a high degree of DNA replication does not represent the severity of liver damage. Whether the liver is damaged or the degree of damage needs to be assessed with reference to the results of liver biochemistry tests and liver biopsy results. If there is any abnormality, it is recommended to go to a regular hospital for a clear diagnosis.