Skip to main content
Your session has expired. Reloading...

Doctor's Assessment Included

Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.

Autoimmune

Immunoglobulin IgM

Immunoglobulin M (IgM) is the first antibody your immune system produces when encountering a new infection. Understanding your IgM levels as a woman is especially important, as hormonal changes during the menstrual cycle, pregnancy, and menopause can influence immune response and autoimmune risk.

What It Measures

This test measures the level of IgM antibodies in your blood. IgM is the largest antibody and is the first line of defence when a new pathogen is detected.

Why It Matters

IgM levels can help identify recent or active infections and may provide clues about immune system disorders. Elevated IgM can be associated with autoimmune disease or, in some cases, certain blood cancers. Low IgM may indicate an immune deficiency.

When to Test

Testing may be recommended when a recent infection is suspected, when symptoms suggest an immune disorder, or as part of a broader autoimmune panel. Consult a healthcare professional for interpretation of results.

Symptoms

Low Levels

Frequent infections, recurrent respiratory illnesses, slow recovery from illness, chronic fatigue, susceptibility to gastrointestinal infections

High Levels

Persistent fatigue, unexplained fever, swollen lymph nodes, joint pain, skin rashes, night sweats

Lifestyle Tips

Supporting your immune system through a nutrient-rich diet, regular physical activity, and sufficient sleep can contribute to balanced immunoglobulin levels. Reducing chronic stress and avoiding exposure to known infections where possible may also be beneficial.

Frequently Asked Questions

What does a high IgM level mean?
Elevated IgM may indicate a recent or active infection, an autoimmune condition, or in rare cases a blood disorder. Your healthcare professional can help determine the underlying cause.
How is IgM different from IgG?
IgM is the first antibody produced during a new infection and provides short-term defence. IgG is produced later and provides long-term immunity. Both are important parts of the immune response.
Can stress affect IgM levels?
Chronic stress can influence immune function and may affect immunoglobulin levels. Maintaining a healthy lifestyle with adequate rest and stress management can support balanced immune responses.