Chronic hepatitis B is one of the most common chronic infectious diseases in China, and China is a high prevalence area of infection, which is mainly transmitted through blood and blood products, mother and child, broken skin and mucous membranes and sexual contact. Clinical manifestations are varied, often with generalized fatigue, poor appetite, nausea, vomiting, anorexia of grease, liver function abnormalities as the main clinical manifestations, partly accompanied by fever and jaundice, easy to develop into cirrhosis, and a small number of progression to primary hepatocellular carcinoma. Its general treatment principle: pay attention to rest, reasonable nutrition including the provision of appropriate calories, adequate protein supplementation, avoid high-fat food, appropriate amount of vitamins and minerals, if the liver function is abnormal, but also need to selective liver-protecting drugs, avoid smoking and alcohol, to prevent overwork and avoid the application of liver-damaging drugs and other comprehensive treatment. The following is a description of how to look at hepatitis B five labs, hepatitis B five are: hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (HBsAb, anti-HBs), hepatitis B e antigen (HBeAg), hepatitis B e antibody (HBeAb, anti-HBe), hepatitis B core antibody (HBcAb, anti-HBc). In qualitative tests, the results are usually indicated by a “+” or “-” sign, with a “+” sign indicating positive and a “- The “+” sign indicates positive and the “-” sign indicates negative. The significance of the following: 1, Hepatitis B surface antigen (HBsAg): a sign of hepatitis B virus infection, not infectious, and does not reflect the virus replication, replication, infectiousness. 2.Hepatitis B surface antibody (HBsAb, anti-HBS): a neutralizing protective antibody, the main sign of immunity. After human body vaccination against hepatitis B, or natural infection of hepatitis B after the recovery period to obtain the sign of immunity, suggesting that the hepatitis B virus has immunity. 3.Hepatitis B e antigen (HBeAg): HBeAg is the sign of hepatitis B virus replication and infectiousness, when it is positive, it suggests that hepatitis B virus replication is more active and infectious. When it is positive, it indicates that hepatitis B virus is more active in replication and more contagious. If it is positive for more than 3 months, it has the tendency to develop chronic hepatitis B. 4.Hepatitis B e antibody (HBeAb, anti-HBe): (1) Hepatitis B virus stops replicating or replication is reduced, the infectiousness is weakened, and it is in the stage of restoration and stabilization; (2) It may also suggest that HBV has mutated, and it needs to be quantified by HBV-DNA to determine. 5.Hepatitis B core antibody (HBcAb, anti-HBc): HBcAb is the sign of once infected or being infected with virus, divided into two kinds of IgM and lgG: anti-HBc-IgM positive suggests newly infected or viral replication, viral activity, infectious; anti-HBc-IgG positive suggests previous infection, and anti-HBc-IgG positive suggests previous infection, and anti-HBc-IgG positive suggests previous infection, and anti-HBc-IgG positive suggests previous infection. -IgG positive suggests previous infection, non-infectious. Hepatitis B two-half check test is a routine test in the hepatitis B test, the test should pay attention to the following matters: in the day before the test need to refrain from alcohol, and avoid cold, hard and spicy and greasy food, stop the use of medication to ensure adequate rest, if the examination of liver function, biochemistry or lipid tests, need to fasting.