Each immunoglobulin has its own function and characteristics, so if each immunoglobulin is abnormal, the body produces a corresponding response. It cannot be said which immunoglobulin is more important, they are equally important. Immunoglobulins refer to proteins with antibody activity present in blood and body fluids. Immunoglobulins have anti-viral and anti-bacterial effects, strengthen the phagocytic function of phagocytes, engulf and destroy pathogenic microorganisms that invade the body with the assistance of complement, and play a defensive and protective role for the organism. Immunoglobulins are mainly divided into IgA, IgM, IgG, IgD and IgE, which have different normal value ranges depending on the test subject, test method and age and region. The immunoglobulin triple test can be done when the body has an adverse reaction.