What causes high Hemoglobin and low RDW?

High Hemoglobin and low RDW can be caused by many reasons.

If your Hemoglobin is in between 13 g/dL and 17 g/dL and your RDW is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for Hemoglobin and RDW respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of Hemoglobin : 13 - 17 g/dL

Ideal values of Hemoglobin depending on age :

Age	Ideal Hemoglobin value
<5 years	13.754
5-10 years	14.552
10-15 years	15.396
15-20 years	16.289
20-25 years	16.234
25-30 years	16.18
30-35 years	16.125
35-40 years	16.071
40-45 years	16.017
45-50 years	16.946
50-55 years	16.889
55-60 years	16.833
60-70 years	16.776
70-80 years	16.72
80-90 years	16.664
90-100 years	16.608
>100 years	16.552

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

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

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

Normal range of RDW : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	12.273
5-10 years	12.985
10-15 years	13.738
15-20 years	13.692
20-25 years	13.646
25-30 years	13.6
30-35 years	13.554
35-40 years	13.508
40-45 years	13.462
45-50 years	13.417
50-55 years	13.372
55-60 years	13.327
60-70 years	13.282
70-80 years	13.237
80-90 years	13.193
90-100 years	13.958
>100 years	13.911

High Hemoglobin and low RDW can be caused by a lot of reasons. If you take Hemoglobin and RDW blood tests and the results are higher than 17 g/dL for Hemoglobin and lower than 11.6 % for RDW, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the Hemoglobin and RDW Tests Are Done :

If your doctor wants Hemoglobin and RDW tests on you, you may need to go through these tests. During the Hemoglobin and RDW blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Hemoglobin and RDW Test reports by your pathologist.