Hepatitis B, HBVDNA positive, normal liver function, most liver tissues without inflammation or inflammation is light, the inflammation of liver tissues in young people is particularly no inflammation or light, so there is no need for antiviral therapy, and there is no need to use other liver-protective and enzyme-lowering drugs to treat, and when ALT is normal, the immunity of the human body to clear the hepatitis B virus is low, and the efficacy of antiviral therapy is ineffective or extremely poor. When HBVDNA is positive and liver function is normal, the body’s immunity to clear hepatitis B virus and the hepatitis B virus in the human body are in a peaceful coexistence stage, the body’s immunity tolerates the existence of hepatitis B virus, the body’s immunity to clear hepatitis B virus is not likely to clear hepatitis B virus, so there is no need for antiviral therapy. In addition, it must be understood that drugs are only external factors, the human body’s immune clearance ability of the hepatitis B virus is the internal factor, external factors only through internal factors, in order to play antiviral ability, ALT normal, the human body’s immune clearance of the hepatitis B virus is low, antiviral treatment is ineffective or even very poor, and the hepatitis B virus is a long-term carrier or even lifelong infection, HBVDNA often shows positive, it is impossible to see HBVDNA positive on antiviral treatment, can make many hepatitis B patients intermittent antiviral treatment for decades, not only ineffective, and it is easy to make the hepatitis B virus resistant to antiviral drugs, the current antiviral drug varieties are limited, the use of interferon has certain limitations, oral antiviral drugs only 4, 5, once the antiviral drug resistance is ineffective, will make us helpless, so that no antiviral drug use The hepatitis B virus is prone to resistance to antiviral drugs, and people with hepatitis B virus infection not only waste money and time, but also feel troubled, affecting their health and work. As long as when the HBVDNA is positive and the ALT is elevated to twice or more than 2 times the upper limit of the normal value, the body’s immunity to clear the hepatitis B virus is stronger and the anti-viral treatment is more effective, and the higher the ALT, the better the effect. However, there is one exception, such as cirrhosis, even if the liver function is normal, antiviral treatment should be.