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Interpret Your Erythrocyte Sedimentation Rate Results
Enter your ESR value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.
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This AI-generated interpretation is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Results may vary based on individual health factors not captured here.
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Erythrocyte Sedimentation Rate Normal Ranges
ESR measures how quickly red blood cells settle to the bottom of a test tube over one hour.
| Age Group | Sex | Reference Range | Unit | Notes |
|---|---|---|---|---|
| Adults (18–64) | Male | 0 – 15 | mm/hr | Westergren method; rises with age |
| Adults (18–64) | Female | 0 – 20 | mm/hr | — |
| Elderly (65+) | Male | 0 – 20 | mm/hr | Age >50 |
| Elderly (65+) | Female | 0 – 30 | mm/hr | Age >50 |
Common Causes of High ESR
Bacterial infections (septicemia, TB, osteomyelitis)Autoimmune diseases (rheumatoid arthritis, lupus, vasculitis)Giant cell arteritis (often >100 mm/hr)
Common Causes of Low ESR
Polycythemia vera (too many cells, slower settling)Sickle cell disease (abnormal cell shape)Technical error (sample too old or tube tilted)
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