Jun 10, 2025 · IgM antibodies (immunoglobulins) are the first antibodies your immune system makes in response to an infection. High IgM might mean you’ve had a recent infection.

Dec 19, 2025 · Immunoglobulin M (IgM) is one type of immunoglobulin. Continue reading to learn more about IgM, what high and low IgM levels may mean, and more.

Learn about the IgM test, its functions, reference ranges, causes of high or low IgM levels, symptoms, and when to consult a doctor for immune issues.

Aug 2, 2025 · Immunoglobulin M: Your body makes IgM antibodies when you are first infected with new bacteria or other germs. They are your body's first line of defense against infections.

Immunoglobulin M (IgM) is the largest of several isotypes of antibodies (also known as immunoglobulin) that are produced by vertebrates. IgM is the first antibody to appear in the response to initial …

Jul 2, 2024 · IgG and IgM are important antibodies for immunity, as they help to eliminate foreign microorganisms. Learn more about the difference between IgG and IgM, when they are ordered for …

Aug 16, 2025 · Immunoglobulin M (IgM) is a type of antibody that serves as a first responder in the body’s immune defense. It is the initial antibody produced by the immune system when it encounters …