What causes high RDW and low Hemoglobin?

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

If your RDW is in between 11.6 % and 14 % and your Hemoglobin is in between 13 g/dL and 17 g/dL then you need not worry as these are the normal ranges for RDW and Hemoglobin 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 RDW : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.832
5-10 years	12.069
10-15 years	12.31
15-20 years	12.556
20-25 years	12.807
25-30 years	13.063
30-35 years	13.324
35-40 years	13.59
40-45 years	13.862
45-50 years	13.856
50-55 years	13.85
55-60 years	13.844
60-70 years	13.839
70-80 years	13.834
80-90 years	13.829
90-100 years	13.824
>100 years	13.818

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

If you want your blood test report to be interpreted by RDW specialist, then 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

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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

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

Normal range of Hemoglobin : 13 - 17 g/dL

Ideal values of Hemoglobin depending on age :

Age	Ideal Hemoglobin value
<5 years	13.26
5-10 years	13.525
10-15 years	13.796
15-20 years	14.072
20-25 years	14.353
25-30 years	14.64
30-35 years	14.933
35-40 years	15.232
40-45 years	15.537
45-50 years	15.848
50-55 years	16.165
55-60 years	16.488
60-70 years	16.818
70-80 years	16.811
80-90 years	16.804
90-100 years	16.797
>100 years	16.79

High RDW and low Hemoglobin can be caused by a lot of reasons. If you take RDW and Hemoglobin blood tests and the results are higher than 14 % for RDW and lower than 13 g/dL for Hemoglobin, 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 RDW and Hemoglobin Tests Are Done :

If your doctor wants RDW and Hemoglobin tests on you, you may need to go through these tests. During the RDW and Hemoglobin 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 RDW and Hemoglobin Test reports by your pathologist.