What causes high WBC and low Vitamin B12?

High WBC and low Vitamin B12 can be caused by many reasons.

If your WBC is in between 4 thou/uL and 11 thou/uL and your Vitamin B12 is in between 211 pg/mL and 911 pg/mL then you need not worry as these are the normal ranges for WBC and Vitamin B12 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 WBC : 4 - 11 thou/uL

Ideal values of WBC depending on age :

Age	Ideal WBC value
<5 years	4.062
5-10 years	4.125
10-15 years	4.189
15-20 years	4.254
20-25 years	4.32
25-30 years	4.387
30-35 years	4.455
35-40 years	4.524
40-45 years	4.594
45-50 years	4.665
50-55 years	4.737
55-60 years	4.81
60-70 years	4.884
70-80 years	4.959
80-90 years	5.035
90-100 years	5.113
>100 years	5.192

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

If you want your blood test report to be interpreted by WBC specialist, then you can upload your report. Our WBC 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 WBC levels include:

• Infections, most commonly caused by bacteria and some viruses, less commonly by fungi or parasites
• Bone marrow damage
• Overwhelming infections (e.g., sepsis)
• Inflammation or inflammatory conditions such as vasculitis or inflammatory bowel disease
• Myelodysplastic syndrome

If you want your blood test report to be interpreted by WBC specialist, you can upload your report. Our WBC 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 Vitamin B12 : 211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age :

Age	Ideal Vitamin B12 value
<5 years	214.249
5-10 years	217.548
10-15 years	220.898
15-20 years	224.3
20-25 years	227.754
25-30 years	231.261
30-35 years	234.822
35-40 years	238.438
40-45 years	242.11
45-50 years	245.838
50-55 years	249.624
55-60 years	253.468
60-70 years	257.371
70-80 years	261.335
80-90 years	265.36
90-100 years	269.447
>100 years	273.596

High WBC and low Vitamin B12 can be caused by a lot of reasons. If you take WBC and Vitamin B12 blood tests and the results are higher than 11 thou/uL for WBC and lower than 211 pg/mL for Vitamin B12, 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 WBC and Vitamin B12 Tests Are Done :

If your doctor wants WBC and Vitamin B12 tests on you, you may need to go through these tests. During the WBC and Vitamin B12 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 WBC and Vitamin B12 Test reports by your pathologist.