What is it?
Immunoglobulin M (IgM) is an antibody blood protein. IgM is the largest antibody, and it is the first antibody to appear in the response to initial exposure to infection/antigen.
Reference ranges
If your indicative IgM level is lower than the reference range for our laboratory:
An IgM deficiency is a health condition where your body does not make enough Immunoglobulin M (IgM). People with IgM deficiency are more likely to get infections or not be able to fight them off very easily or quickly.
You can discuss this result with your GP if you are concerned.
If your indicative IgM level is higher than the reference range for our laboratory:
High levels of IgM generally implies that you have an infection or an inflammatory or autoimmune disease. This also generally involves your central nervous system. In cases of an autoimmune disorder, this causes your immune system to attack your own healthy cells by mistake. This can lead to various problems with health.
You can discuss this result with your GP if you are concerned.
