Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
ESR rises slowly and stays high longer than CRP. It's normally higher in women and older adults.
Why it's done
- Possible giant cell arteritis or polymyalgia rheumatica
- Following autoimmune conditions
- Unexplained fever, joint pain, or weight loss
Getting ready and what happens
- No special preparation is needed.
How the test is done
- A health worker cleans the skin, puts a band around your arm, and draws blood from a vein with a small needle. It takes a few minutes.
What the results mean
| Result | Typical range for adults |
|---|---|
| Men | Up to about 15 to 20 mm/hr (higher with age) |
| Women | Up to about 20 to 30 mm/hr (higher with age) |
Normal ranges vary from lab to lab and can differ by age, sex, and pregnancy. Your report lists your lab's own range next to each result. A result a little outside the range is often not a problem.
High
Can come from infection, autoimmune disease, anemia, kidney disease, pregnancy, or cancer. Very high levels, such as over 100, need a careful look.
When a result needs quick action
Call 911New headache with jaw pain when chewing or vision changes in someone over 50 (possible giant cell arteritis)
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
- What could be causing this?
- Do I need more tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related tests
Sources
Last updated 2026-11-13.