An ESR (Erythrocyte Sedimentation Rate) result considered "bad" is one that falls outside the normal range, indicating potential inflammation or disease. The normal range varies depending on age and sex. A significantly elevated ESR, often above 100 mm/hr, is particularly concerning and may suggest a more serious condition.
Understanding Normal and Abnormal ESR Rates
The following table summarizes normal and abnormal ESR ranges based on age and sex, as noted in several references. Remember that these are guidelines, and individual results should be interpreted by a healthcare professional.
| Age Group | Sex | Normal ESR (mm/hr) | Abnormal ESR (mm/hr) |
|---|---|---|---|
| Females under 50 | Female | 0-20 | >20 |
| Males under 50 | Male | 0-15 | >15 |
| Females over 50 | Female | 0-30 | >30 |
| Males over 50 | Male | 0-20 | >20 |
| Newborn | Both | 0-2 | >2 |
| Newborn to Puberty | Both | 3-13 | >13 |
High ESR: An ESR significantly higher than the normal range often suggests the presence of inflammation in the body. This could be caused by various conditions, including:
- Infections (bacterial, viral, fungal)
- Autoimmune diseases (rheumatoid arthritis, lupus)
- Cancer
- Vasculitis (inflammation of blood vessels)
Low ESR: While a low ESR is generally less concerning, it may indicate:
- A blood disorder
- Certain medications
- Polycythemia (increased red blood cell count)
ESR above 100 mm/hr: This highly elevated level often points to a more active disease process, such as certain cancers or vasculitis (as noted by multiple sources).
Important Note: An ESR test alone cannot diagnose a specific condition. It is often used in conjunction with other tests and clinical evaluation to reach a proper diagnosis. Consult your doctor for interpretation of your ESR results.
