What causes high Hematocrit and low WBC?

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

If your Hematocrit is in between 40 % and 50 % 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 Hematocrit and WBC 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 Hematocrit : 40 - 50 %

Ideal values of Hematocrit depending on age :

Age	Ideal Hematocrit value
<5 years	40.688
5-10 years	41.388
10-15 years	42.1
15-20 years	42.824
20-25 years	43.561
25-30 years	44.31
30-35 years	45.072
35-40 years	45.847
40-45 years	46.636
45-50 years	47.438
50-55 years	48.254
55-60 years	49.084
60-70 years	49.928
70-80 years	49.913
80-90 years	49.899
90-100 years	49.884
>100 years	49.869

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

If you want your blood test report to be interpreted by Hematocrit specialist, then you can upload your report. Our Hematocrit 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

Hematocrit treatment - Click to read 10 GOLDEN ARTICLES on Anemia

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

• Damage to the bone marrow
• Kidney failure
• Excessive destruction of red blood cells
• Chronic inflammatory diseases
• Congenital heart disease

If you want your blood test report to be interpreted by Hematocrit specialist, you can upload your report. Our Hematocrit 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	4.069
5-10 years	4.139
10-15 years	4.21
15-20 years	4.282
20-25 years	4.356
25-30 years	4.431
30-35 years	4.507
35-40 years	4.585
40-45 years	4.664
45-50 years	4.744
50-55 years	4.826
55-60 years	4.909
60-70 years	4.993
70-80 years	5.079
80-90 years	5.166
90-100 years	5.255
>100 years	5.345

High Hematocrit and low WBC can be caused by a lot of reasons. If you take Hematocrit and WBC blood tests and the results are higher than 50 % for Hematocrit 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 Hematocrit and WBC Tests Are Done :

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

Medical References

• Cleveland Clinic – Hematocrit Test: What It Is, Levels, and High & Low Range
• Mayo Clinic – Hematocrit test
• MedlinePlus – Hematocrit Test