HBsAg refers to hepatitis B surface antigen, which is a component of the surface of the complete particles of the hepatitis B virus, and after the hepatitis B virus has infected a person, it can also secrete many surface particles in addition to the complete hepatitis B particles. The HBcAb positive indicates that the immune system has found the hepatitis B core antibody, which also indicates the existence of hepatitis B virus infection. This is usually a major or minor triple-positive state and is often accompanied by a positive hepatitis B E antigen or E antibody. Therefore, the results of the complete hepatitis B quantification are needed to determine if it is a major or minor triplet.