HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

What is difference between igm and igg for western blot for lyme. positive for igm but not igg, what does that mean? tks

A doctor has provided 1 answer

Recent infection: Hi. IgM is present only with recent infection. After IgM levels fall away, IgG takes over for ongoing and recurrent exposure to antigen. (The antibodies in this picture are IgG's). I'm glad your doc was on the ball. She/he may have saved you a world of hurt by making the diagnosis promptly. Good luck!

Dr Munshower agreed

Answered 11/27/2014

3.5k views

Thank

Related Questions

A member asked:

I tested positive for Lyme disease. I was given the EIA (result 6.1), IgG (10 bands present) and IgM WB (3 bands) Does this mean I've had LD for a whi?

A doctor has provided 1 answer

A member asked:

What is the difference in testing an IgG and IgM bands for Lyme versus multiple myeloma?

A doctor has provided 1 answer

A member asked:

Is it possible to have a Lyme infection with a negative IgG but positive igm?

A doctor has provided 1 answer

A member asked:

Hello, I have the following symptoms listed above. I tested positive for IgG p66, IgG p41 And IGm P23. Do I have Lyme? Or a bacteria?

A doctor has provided 1 answer

A member asked:

Lyme,Total AbTest/Reflex.Lyme IgG/IgM Ab < 0.91;Reference Interval:ISR 0.00-0.90; negative <0.91;equivocal 0.91-1.09;positive >1.09.Is above + or equi

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Why would my lyme disease western blot test show 4 igg bands as reactive? Could this mean I have the disease? None of the igm bands were reactive.
Do I have Lyme dx? Tested negative for IGM and positive for IGG. Western Blot serum-1 Not indicated, IgGCDC neg, IGMCDC, Neg, IGMalt, Neg, IgGalt Pos Igg: 66, 39, 31, 23 IGM: no bands present. Being treated for exposure to Lyme dx?
My dr. Did Western blot for Lyme. Both IGM and IGG came back positive. Have enough bands to diagnose according to the CDC. No Elisa. Is it ok?
Is "Lyme AB panel w.blot" the same test as "Lyme AB Igg & Igm"?
How accurate is a LYME DISEASE AB W/REFL TO BLOT (IGG, IGM) Test? My results came back negative but with my symptoms my doctor seemed pretty certain

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.