Lab marker · High

High Erythrocyte Sedimentation Rate (ESR): what it means

A Erythrocyte Sedimentation Rate (ESR) result above the normal range is considered high. Here is what a raised Erythrocyte Sedimentation Rate (ESR) can point to, and when it is worth discussing with a doctor.

Reference range: <15 mm/hr (men), <20 mm/hr (women); rises with age

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What a high Erythrocyte Sedimentation Rate (ESR) can mean

  • Active infection or inflammation — bacterial > viral; pneumonia, osteomyelitis, abscess.
  • Autoimmune disease flare — rheumatoid arthritis, lupus, polymyalgia rheumatica.
  • Giant-cell (temporal) arteritis — ESR almost always >50 mm/hr; sight-threatening if missed.
  • Malignancy — myeloma, lymphoma, metastatic cancer.
  • Chronic kidney disease, end-stage renal failure — ESR rises non-specifically.
  • Pregnancy, anaemia, advanced age — physiological elevations.

When to discuss with a doctor

ESR >50 mm/hr in an older patient with new headache, scalp tenderness or jaw pain is a same-day rheumatology consultation — suspected giant-cell arteritis. ESR + CRP together that don't return to normal after a treated infection raise the question of a persistent cause. Mediora.AI shows the value in context; ESR alone is not a diagnostic test.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.