Is RDW 21 high, normal or dangerous? What does Red cell distribution width level 21 mean?

Your RDW level of 21 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	11.844
5-10 years	12.093
10-15 years	12.347
15-20 years	12.606
20-25 years	12.871
25-30 years	13.141
30-35 years	13.417
35-40 years	13.699
40-45 years	13.987
45-50 years	13.981
50-55 years	13.975
55-60 years	13.968
60-70 years	13.962
70-80 years	13.956
80-90 years	13.95
90-100 years	13.944
>100 years	13.938

*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

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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	11.851
5-10 years	12.107
10-15 years	12.369
15-20 years	12.637
20-25 years	12.91
25-30 years	13.189
30-35 years	13.474
35-40 years	13.765
40-45 years	13.759
45-50 years	13.753
50-55 years	13.746
55-60 years	13.739
60-70 years	13.732
70-80 years	13.726
80-90 years	13.72
90-100 years	13.714
>100 years	13.708

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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