Hepatitis B (Hepatitis B for short) is one of the most prevalent infectious diseases in China, and the Hepatitis B triple test is done for health checkups, job exams, and school physicals. However, when most people get the test report, they only see the “+” and “-” signs on it, but they don’t know how to understand it. The so-called “hepatitis B triple system” refers to five common immunological tests to check hepatitis B: a pair of surface antigen (HBsAg) and surface antibody (HBsAb); a pair of e antigen (HBeAg) and e antibody (HBeAb); a pair of core antigen (HBcAg) and core antibody (HBcAb). HBcAb). Because the core antigen is in the nucleus, the detection is complicated and cannot be detected by general laboratories, thus there are only two and a half pairs, which are usually indicated by English code names on the test sheets, in order: HBsAg, HBsAb (anti-HBS), HBeAg, HBeAb (anti-HBe), HBcAb (anti -HBc). 1. HBsAg: It is the marker of hepatitis B virus infection. 2. HBsAb (anti-HBs): It is induced by HBsAg and is considered a protective antibody, and its presence marks the ability to produce specific immunity against HBV infection. 3. HBeAg: It is the part that makes up the core of hepatitis B virus, and its appearance is an important sign of hepatitis B. It is highly contagious. 4, HBeAb (anti-HBe), not protective antibodies, its appearance, indicating a reduction in HBV replication, less infectious. 5, HBcAb (anti-HBc), also not protective antibodies. Anti-HBc includes anti-HcIgM antibody and anti-HBcIgG antibody. Anti-HBcIgM antibodies appear early, but disappear quickly and last for a short period of time, so a positive anti-HBcIgM antibody on the lab report can be used as a sign of HBV infection and replication. 1, 3, 5 positive is commonly known as major triple yang 1, 4, 5 positive is commonly known as minor triple yang.