What causes high MCH and low Vitamin B12?

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

If your MCH is in between 27 pg and 32 pg 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 MCH 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.

Some examples of conditions that can increase or decrease MCH levels include:

• An overactive thyroid gland
• Complications from an infection
• An autoimmune disease
• Thalassemia, an inherited blood disorder
• Liver diseases

MCH treatment - Click to read 10 GOLDEN ARTICLES on Anemia

Normal range of MCH : 27 - 32 pg

Ideal values of MCH depending on age :

Age	Ideal MCH value
<5 years	27.686
5-10 years	28.389
10-15 years	29.11
15-20 years	29.849
20-25 years	30.607
25-30 years	31.384
30-35 years	31.364
35-40 years	31.344
40-45 years	31.324
45-50 years	31.304
50-55 years	31.284
55-60 years	31.264
60-70 years	31.244
70-80 years	31.224
80-90 years	31.204
90-100 years	31.997
>100 years	31.977

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

Normal range of Vitamin B12 : 211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age :

Age	Ideal Vitamin B12 value
<5 years	216.359
5-10 years	221.855
10-15 years	227.49
15-20 years	233.268
20-25 years	239.193
25-30 years	245.269
30-35 years	251.499
35-40 years	257.887
40-45 years	264.437
45-50 years	271.154
50-55 years	278.041
55-60 years	285.103
60-70 years	292.345
70-80 years	299.771
80-90 years	307.385
90-100 years	315.193
>100 years	323.199

High MCH and low Vitamin B12 can be caused by a lot of reasons. If you take MCH and Vitamin B12 blood tests and the results are higher than 32 pg for MCH 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 MCH and Vitamin B12 Tests Are Done :

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

Medical References

• WebMD – MCH Levels (Mean Corpuscular Hemoglobin) From Blood Test
• Cleveland Clinic – MCH in a Blood Test (Mean Corpuscular Hemoglobin)
• NIH – Red Cell Indices