What causes high MCH and low PCV?

High MCH and low PCV can be caused by many reasons.

If your MCH is in between 27 pg and 32 pg and your PCV is in between 39 % and 51 % then you need not worry as these are the normal ranges for MCH and PCV 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 MCH : 27 - 32 pg

Ideal values of MCH depending on age :

Age	Ideal MCH value
<5 years	27.694
5-10 years	28.406
10-15 years	29.136
15-20 years	29.885
20-25 years	30.653
25-30 years	31.441
30-35 years	31.42
35-40 years	31.399
40-45 years	31.378
45-50 years	31.357
50-55 years	31.336
55-60 years	31.315
60-70 years	31.295
70-80 years	31.274
80-90 years	31.254
90-100 years	31.233
>100 years	31.213

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

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

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

If you want your blood test report to be interpreted by MCH specialist, you can upload your report. Our MCH 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 PCV : 39 - 51 %

Ideal values of PCV depending on age :

Age	Ideal PCV value
<5 years	40.002
5-10 years	41.03
10-15 years	42.084
15-20 years	43.166
20-25 years	44.275
25-30 years	45.413
30-35 years	46.58
35-40 years	47.777
40-45 years	49.005
45-50 years	50.264
50-55 years	50.231
55-60 years	50.198
60-70 years	50.165
70-80 years	50.132
80-90 years	50.099
90-100 years	50.066
>100 years	50.033

High MCH and low PCV can be caused by a lot of reasons. If you take MCH and PCV blood tests and the results are higher than 32 pg for MCH and lower than 39 % for PCV, 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 PCV Tests Are Done :

If your doctor wants MCH and PCV tests on you, you may need to go through these tests. During the MCH and PCV 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 PCV 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