Hepatitis B and Hepatitis C are two contagious diseases whose pathogens are viruses. When these viruses infect the body, they mainly damage the liver, which is why they are named Hepatitis B and Hepatitis C. The two viruses are different in that Hepatitis B is a DNA virus and Hepatitis C is an RNA virus. These two viruses are different in that the hepatitis B virus is a DNA virus and the hepatitis C virus is an RNA virus, both of which are more likely to cause chronic infections after infection. Chronic infection may cause the liver to become cirrhotic, and various complications may occur, even liver cancer, so it has a great impact on human life, and also has a greater impact on the quality of life. Hepatitis C is now mostly curable through antiviral drugs. And although hepatitis B is not curable, through long-term oral administration of nucleoside analogs, it can achieve the purpose of inhibiting the replication of the hepatitis B virus, so that patients with chronic hepatitis B can generally prevent the progression to cirrhosis.