Reviewed: 13. Juli 2026
IgG Immunoglobulin G (IgG)
Unit: g/l
Quick Explanation
IgG is the most common antibody class and provides long-term protection after infections or vaccinations. Low values can indicate an immune deficiency, elevated values chronic infections or inflammation.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Chronic infection
- ·Autoimmune disease
- ·Certain blood disorders
Value too low — possible causes
- ·Congenital or acquired immune deficiency
- ·Protein loss via kidney or bowel
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →Does my IgG value indicate an immune deficiency?
- →Should other immunoglobulins be measured?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.