Clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immuneimmunoglobulintests are also necessary. Although many people do these tests in the doctor's advice, they do not know its role or clinical significance. Here you can find an explanation.