What causes high Hemoglobin and low Vitamin B12?

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

If your Hemoglobin is in between 13 g/dL and 17 g/dL 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 Hemoglobin 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 Hemoglobin : 13 - 17 g/dL

Ideal values of Hemoglobin depending on age :

Age	Ideal Hemoglobin value
<5 years	13.135
5-10 years	13.272
10-15 years	13.41
15-20 years	13.549
20-25 years	13.69
25-30 years	13.832
30-35 years	13.976
35-40 years	14.121
40-45 years	14.268
45-50 years	14.416
50-55 years	14.566
55-60 years	14.717
60-70 years	14.87
70-80 years	15.025
80-90 years	15.181
90-100 years	15.339
>100 years	15.499

*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 Vitamin B12 : 211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age :

Age	Ideal Vitamin B12 value
<5 years	213.194
5-10 years	215.411
10-15 years	217.651
15-20 years	219.915
20-25 years	222.202
25-30 years	224.513
30-35 years	226.848
35-40 years	229.207
40-45 years	231.591
45-50 years	234
50-55 years	236.434
55-60 years	238.893
60-70 years	241.377
70-80 years	243.887
80-90 years	246.423
90-100 years	248.986
>100 years	251.575

High Hemoglobin and low Vitamin B12 can be caused by a lot of reasons. If you take Hemoglobin and Vitamin B12 blood tests and the results are higher than 17 g/dL for Hemoglobin 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 Hemoglobin and Vitamin B12 Tests Are Done :

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