ALT and DNA are not the same.DNA refers to Hepatitis B Virus DNA test, Hepatitis B virus is a DNA virus, Hepatitis B Virus DNA test is a clinical examination of the replication of the Hepatitis B Virus.ALT refers to the alanine aminotransferase. The level of Hepatitis B DNA can reflect the amount of Hepatitis B virus in the body and the infectiousness. If the test value is high, it suggests that the Hepatitis B virus has replication and infectiousness. If the test value is low, it proves that the virus in the body is inactive and in a state of low or no replication. Hepatitis B DNA only reflects the replication of the virus, and whether treatment is needed needs to be combined with the results of liver function, ultrasound and other tests to determine. If the examination finds that there is inflammation in the liver and liver fibrosis, it is still necessary to actively carry out antiviral and antifibrotic treatment. ALT is the enzyme alanine aminotransferase. Normally, transaminase exists in liver cells, and is released into the bloodstream when the cells are infected by pathogens such as viruses, or when the cells are damaged due to intoxication or fat metabolism disorders, causing an increase in transaminase. There are many causes of transaminase elevation, including fatty liver, viral hepatitis (hepatitis A, hepatitis B, etc.), alcoholic cirrhosis, EBV infection and other diseases, as well as the effects of medications. If the transaminase test result is abnormal, you should consult a doctor to identify the cause of the disease and treat it accordingly.