- Children and adults with repeated sick;

- Autoimmune or atopic reactive disease;

- IgG4-related diseases;

- Immune deficiency disease;

- Other chronic diseases that occur immunoglobulin abnormalities: such as chronic kidney disease, neurological diseases, blood diseases, tumors, etc.

In short, if someone encountered these conditions, especially repeated infections, he need not forget to do an immunoglobulin test, so as not to miss the best treatment time.