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Lab marker guide

Mean cell volume (MCV)

The average volume of one red cell. It shows whether the cells are smaller or larger than usual.

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How reports print it

MCVСредний объем эритроцитаСредний объем эритроцитовСредний объем эритроцитов MCVMean corpuscular volumeMean cell volume

What it shows

The average volume of one red cell. It shows whether the cells are smaller or larger than usual.

Units and conversion

Base unit: fL.

Printed in one unit.

Typical ranges

Your laboratory’s range comes first — it is printed on the report next to the result. Below is one laboratory’s adult range with its method: a reference, not a rule.

WhoRange, fL
Men, 18–44 years80–99
Women, 18–44 years81–100
Adults, 45–65 years81–101
Adults, 66 years and older81–102

Range source: Лаборатория Хеликс — Общий анализ крови (без лейкоцитарной формулы и СОЭ)

Why it can be higher

Common reasons discussed with a doctor. This is not a diagnosis.

  • Low vitamin B12 or folate
  • Regular alcohol use
  • Liver conditions and an underactive thyroid
  • Some medicines

Why it can be lower

  • Low iron
  • Inherited differences in haemoglobin production
  • Some chronic conditions

What to ask a doctor

  • Is it worth checking ferritin, or B12 and folate?
  • How has MCV changed in my earlier tests?

Whom to see

A GP or internist.

Sources

Data checked against the sources in October 2026.