Is RDW 21.5 high, normal or dangerous? What does Red cell distribution width level 21.5 mean?

Your RDW level of 21.5 is a High RDW level.

High RDW levels may indicate underlying health problems. The normal range is typically between 11.6 % and 14 %. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

Important - Scroll to the end of this article to see how our patients managed their high RDW levels

The normal RDW range for men is :11.6 - 14 %

**Ideal values of RDW depending on age (male) :**
Age	Ideal RDW value
<5 years	11.849
5-10 years	12.104
10-15 years	12.364
15-20 years	12.63
20-25 years	12.902
25-30 years	13.179
30-35 years	13.462
35-40 years	13.751
40-45 years	13.745
45-50 years	13.739
50-55 years	13.732
55-60 years	13.725
60-70 years	13.719
70-80 years	13.713
80-90 years	13.707
90-100 years	13.701
>100 years	13.996

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our RDW experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides RDW, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

Important - Read more questions about high RDW levels after this video message

A video message on the treatment of your high RDW level

If you want your blood test report to be interpreted by RDW specialist, you can upload your report. Our RDW expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours.Upload blood test report now

Important - At the end of this article read how our patients treated their high RDW levels

Some examples of conditions that increase or decrease RDW levels include:

Crohn's disease
Chronic liver disease
Thalassemia, an inherited blood disorder
An iron or vitamin deficiency
Heart disease

Receive world-class medical opinion about your high RDW levels over email.Upload blood test report now

Important - At the end of this article read how our patients treated their high RDW levels

Also Read :How our patients treated their high rdw?

Normal range of RDW found among women :11.6-14 %

**Ideal values of RDW depending on age (female) :**
Age	Ideal RDW value
<5 years	11.857
5-10 years	12.12
10-15 years	12.388
15-20 years	12.662
20-25 years	12.942
25-30 years	13.229
30-35 years	13.522
35-40 years	13.821
40-45 years	13.814
45-50 years	13.807
50-55 years	13.8
55-60 years	13.794
60-70 years	13.787
70-80 years	13.78
80-90 years	13.773
90-100 years	13.766
>100 years	13.759

Upload your blood test report

If you take a RDW blood test and the results are not in the normal range (11.6-14 %), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

Important :How our patients treated their high rdw?

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How the RDW Test Is Done :

When your doctor orders a RDW test, it involves a straightforward blood draw to measure your RDW levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your RDW test results are usually available within a few hours.

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