DNA virus quantification refers to the detection of the amount of virus free in the blood. Usually, the normal range of DNA virus quantification is related to the laboratory test method, as long as the test result is below the lower limit of the test, it is a normal level. The common DNA virus quantification refers to the hepatitis B virus DNA quantification, which is used to clarify the hepatitis B virus replication in the blood.1. Ultrasensitive testing method: When conditions allow, it is often recommended that the detection of hepatitis B virus be done with this more sensitive method, and if the test result is <15IU/ml or <20IU/ml, it is a normal result. Ultrasensitive detection methods can also be used clinically to evaluate the efficacy of the treatment process, and the more sensitive the detection method, the more accurate the negative results obtained; 2, ordinary detection methods: some laboratories also use ordinary methods for quantitative DNA virus testing, general general hospitals can get <1000cps/ml results, and the detection of more accurate specialist hospitals, can also get <500cps/ml results. /ml, both of which are considered normal. It can be seen that the normal range of DNA virus quantification is not only related to the testing method, but also influenced by different testing institutions. Once it is confirmed that the human body is infected by hepatitis B virus, it is important to receive standardized treatment as soon as possible.