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ESR (erythrocyte sedimentation rate) in Lyme Disease

ESR (erythrocyte sedimentation rate), also described as Non-specific inflammation, is a inflammatory marker with mixed findings in Lyme Disease (Lyme borreliosis, Borrelia burgdorferi infection): studies comparing patients with healthy controls report both increases and decreases. Clinically, it has been associated with often normal in Lyme. The evidence summarised here comes from Lantos et al. 2021 and reflects averages across cohorts rather than any single patient's result.

↕ InconsistentInflammatory

Summary

Direction in Lyme Disease↕ Inconsistent — reported as both higher and lower across studies, with no consistent direction
CategoryInflammatory
Also described asNon-specific inflammation
Compared againstHC (healthy controls)
Associated symptomsOften normal in Lyme
Test typeBlood test (serum / plasma / whole blood)
SourceLantos et al. 2021 — doi:10.1016/j.idc.2021.05.001
Condition atlasLyme Disease Biomarker Atlas

Other conditions where ESR is reported

See the cross-condition hub: ESR across conditions.

Trials, interventions and tests

In clinical-trial registrations this marker maps to the outcome term Change in Laboratory Biomarkers - Erythrocyte sedimentation rate (5 registered trials use a matching outcome measure).

Clinical trials using ESR (erythrocyte sedimentation rate) as an outcome

Interventions studied alongside this marker

Hypothesis-generating links from trial outcome usage and literature co-occurrence. Not treatment recommendations.

Commercial test availability

ESR (Sed Rate) — commercial laboratory test.

Links are for reference only; availability, specimen requirements and coverage vary by location.

Related Inflammatory markers in Lyme Disease

Full list: Lyme Disease Biomarker Atlas.

Frequently asked questions

Is ESR (erythrocyte sedimentation rate) high or low in Lyme Disease?

Mixed. Some studies report higher and others lower ESR (erythrocyte sedimentation rate) in Lyme Disease compared with healthy controls, so no single direction is established. Source: Lantos et al. 2021.

What symptoms is ESR (erythrocyte sedimentation rate) associated with in Lyme Disease?

The cited literature associates this marker with Often normal in Lyme. These are population-level associations and do not mean the marker causes the symptoms.

Which test measures ESR (erythrocyte sedimentation rate)?

It is measured as a blood test (serum / plasma / whole blood). Commercial laboratories such as Quest Diagnostics, LabCorp, Ulta Lab Tests list an orderable assay.

Is one abnormal ESR (erythrocyte sedimentation rate) result diagnostic of Lyme Disease?

No. No single biomarker is diagnostic of Lyme Disease. ESR (erythrocyte sedimentation rate) findings come from group comparisons, overlap considerably between patients and controls, and vary with study design, timing and comparison group. A result should be interpreted by a clinician alongside symptoms, history and other tests.

Is ESR (erythrocyte sedimentation rate) specific to Lyme Disease?

No. The same marker is also reported in Inflammatory Bowel Disease (Crohn's/UC), Rheumatoid Arthritis in this atlas, so it reflects shared biology (for example inflammation or vascular stress) rather than a condition-specific signature.

Cite this page

Open Source Medicine Foundation. (2026). ESR (erythrocyte sedimentation rate) in Lyme Disease: direction, evidence and what it means. OSMF Research Tracker. Retrieved October 7, 2026, from https://research.opensourcemed.info/biomarkers/lyme/esr-erythrocyte-sedimentation-rate.html
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Last reviewed: 2026-06-29 · Page generated from lyme.json · Browse: Lyme Disease atlas · Biomarker Index · All marker pages

Disclaimer: This page is an educational synthesis of published, peer-reviewed research and is not medical advice. Biomarker findings vary across studies with case definitions, comparison groups, timing and assay methods. Direction of change reflects the predominant finding in the cited source and does not establish a diagnostic threshold. Discuss any test result with a qualified clinician.