Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Borrelia IgG (Lyme Disease)
A Borrelia IgG test detects IgG antibodies against Borrelia burgdorferi, the bacterium that causes Lyme disease. A positive result may indicate a past or late-stage infection, as IgG antibodies typically develop several weeks after initial exposure.
What It Measures
This test detects the presence of IgG antibodies directed against Borrelia burgdorferi in your blood. IgG antibodies are produced by the immune system as a later response to infection and may persist for months or years after the initial exposure. The test provides a qualitative result indicating whether these antibodies are present.
Why It Matters
Lyme disease can cause a range of symptoms affecting the joints, nervous system, and heart if not identified and managed. Detecting Borrelia IgG antibodies can help assess whether you have been exposed to the bacterium, particularly in later stages of infection. Results should always be interpreted by a healthcare professional in the context of symptoms and potential tick exposure.
When to Test
Testing may be recommended if you have had a tick bite and are experiencing symptoms consistent with Lyme disease, particularly joint pain, neurological symptoms, or fatigue persisting beyond several weeks. Consult a healthcare professional for guidance on when testing is appropriate.
Lifestyle Tips
Wear protective clothing and use tick repellent when spending time in wooded or grassy areas. Check your body thoroughly for ticks after outdoor activities. Remove ticks promptly and correctly using fine-tipped tweezers. If you notice a characteristic bull's-eye rash or develop unexplained symptoms after a tick bite, consult a healthcare professional.
Frequently Asked Questions
Can Borrelia IgG antibodies remain positive after treatment?
Yes, IgG antibodies against Borrelia may persist in the blood for months or even years after successful treatment. A positive IgG result does not necessarily indicate an active infection. Your healthcare professional will consider the full clinical picture when interpreting your results.
What is the difference between Borrelia IgG and IgM testing?
IgM antibodies typically appear within the first few weeks of infection and may indicate a recent or early-stage infection. IgG antibodies develop later and can persist for a longer period, potentially indicating a past or later-stage infection. Both tests may be used together for a more complete assessment.