2 doctors weighed in:

What causes IgG deficency ?

2 doctors weighed in
Dr. Ed Friedlander
Pathology
1 doctor agrees

In brief: Many causes

If your IgM and IgA levels are normal or high, it's likely you have one of the still-not-fully-understood genetic glitches that come under the heading of "common variable immunodeficiency" which is very common.
If your IgG is just a wee bit below the published "normal", consider ignoring it, but if one or more classes is way low, you deserve an official diagnosis.

In brief: Many causes

If your IgM and IgA levels are normal or high, it's likely you have one of the still-not-fully-understood genetic glitches that come under the heading of "common variable immunodeficiency" which is very common.
If your IgG is just a wee bit below the published "normal", consider ignoring it, but if one or more classes is way low, you deserve an official diagnosis.
Dr. Ed Friedlander
Dr. Ed Friedlander
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