What causes high RBC and low WBC?

high RBC

High RBC and low WBC can be caused by many reasons.

If your RBC is in between 4.5 mil/uL and 5.5 mil/uL and your WBC is in between 4 thou/uL and 11 thou/uL then you need not worry as these are the normal ranges for RBC and WBC respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Important - Go to the end of this article and read how our patients treated their RBC levels 

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Normal range of RBC : 4.5 - 5.5 mil/uL

Ideal values of RBC depending on age :
Age Ideal RBC value
<5 years 4.644
5-10 years 4.793
10-15 years 4.946
15-20 years 5.104
20-25 years 5.267
25-30 years 5.436
30-35 years 5.43
35-40 years 5.425
40-45 years 5.42
45-50 years 5.414
50-55 years 5.408
55-60 years 5.402
60-70 years 5.397
70-80 years 5.392
80-90 years 5.387
90-100 years 5.381
>100 years 5.375

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

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

1,37,160

Total number of patients treated

RBC treatment - Click to read 10 GOLDEN ARTICLES on Anemia

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

  • Sudden (acute) or chronic bleeding from the digestive tract
  • Kidney failure—severe and chronic kidney diseases lead to decreased production of erythropoietin
  • Bone marrow damage
  • Conditions that cause red blood cells to be destroyed, such as hemolytic anemia caused by autoimmunity or defects in the red cell itself
  • Chronic bleeding from the digestive tract

If you want your blood test report to be interpreted by RBC specialist, you can upload your report. Our RBC 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 WBC : 4 - 11 thou/uL

Ideal values of WBC depending on age :
Age Ideal WBC value
<5 years 4.128
5-10 years 4.26
10-15 years 4.396
15-20 years 4.537
20-25 years 4.682
25-30 years 4.832
30-35 years 4.987
35-40 years 5.147
40-45 years 5.312
45-50 years 5.482
50-55 years 5.657
55-60 years 5.838
60-70 years 6.025
70-80 years 6.218
80-90 years 6.417
90-100 years 6.622
>100 years 6.834
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Can Low or High RBC cause Heart Problems?

Read on to know how abnormal RBC affects heart

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High RBC and low WBC can be caused by a lot of reasons. If you take RBC and WBC blood tests and the results are higher than 5.5 mil/uL for RBC and lower than 4 thou/uL for WBC, 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 RBC and WBC Tests Are Done :

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

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Dr. Dwayne Michaels
Guest Author
medchunk-doctor
Dr. Dwayne Michaels
Guest Author
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