Detecting the presence of Hepatitis C antibodies in the body through blood tests is called Hepatitis C Antibody Assay. Hepatitis C antibody is produced after the immune system is stimulated by the entry of hepatitis C virus into the body, but hepatitis C antibody is not a protective antibody, and a positive result can only indicate that the body has been infected with hepatitis C virus, either from previous infection or current infection. Hepatitis C antibody is often tested in the clinic for the initial screening of the population for hepatitis C. Those with positive results should further improve the hepatitis C virus DNA test to further clarify whether the infection is infectious or not. Some patients in the early stage of hepatitis C virus infection, hepatitis C antibody measurement results can be negative, but hepatitis C virus DNA elevation can suggest that the body is infectious. Hepatitis C patients should go to the hospital in time and follow the doctor’s instructions.