ESR Report: Normal Range & How to Read It
ESR measures how fast red blood cells settle in a tube in one hour. It is a general sign of inflammation, and the normal range depends on age and sex.
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What ESR measures
Settling speed
How many millimetres red cells fall in one hour.
Inflammation
ESR rises when there is inflammation somewhere in the body.
Age and sex
Normal ESR is a little higher in women and older adults.
ESR normal range by age
Labs differ a little. Always compare with the range printed on your report.
| Test | Men | Women | Unit | What it tells you |
|---|---|---|---|---|
| ESR (Westergren method) | ||||
| Under 50 years | Men 0–15 | Women 0–20 | mm/hr | Usual range for younger adults. |
| 50 years and over | Men 0–20 | Women 0–30 | mm/hr | Rises a little with age. |
| Children | 0–10 | mm/hr | Usual range for children. | |
| Often tested with it | ||||
| CRP | Below 10 | mg/L | Another sign of inflammation that changes faster. | |
Ranges from the NirogGyan biomarker library. Updated .
What an ESR report looks like
The same results in the usual lab layout, and as a NirogGyan Smart Report.
Numbers and ranges in rows
Each value on our report slider
How to read your ESR report
Check your details
Your age and sex decide which ESR range applies.
Find your result
ESR is printed in millimetres per hour.
Compare with the range
Use the range for your age and sex.
Look for H or L
A flag marks a value outside the range. Your doctor reads what it means.
ESR report questions
What is a normal ESR?
It depends on age and sex. The table above shows the ranges from our biomarker library. Labs differ a little, so compare with your report.
What does a high ESR mean?
ESR rises when there is inflammation somewhere in the body. It does not show where, so your doctor reads it with your symptoms and other tests.
Why is ESR higher in women and older adults?
Normal ESR rises a little with age and is usually a little higher in women. That is why the range changes by age and sex.
Is ESR the same as CRP?
Both are signs of inflammation. CRP changes faster, within hours, while ESR changes over days.
Do I need to fast for an ESR test?
Usually no. ESR is often done with a CBC from the same blood sample.
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