06/03/2026
The next time your RDW is high, don’t assume you just need to eat more green vegetables.
RDW is a a key parameter in your CBC test that measures the variation in the size of your red blood cells.
Yet, nearly 91% of people misinterpret RDW, often thinking it’s linked to haemoglobin or simple iron deficiency, mainly because the numbers look similar.
A normal RDW range is 12% to 15%.
When RDW is high, it can point towards different types of anaemia, vitamin B12 or folate deficiency, or other underlying health concerns, not just low iron.
That’s why RDW should never be ignored or self-diagnosed.
CBC is one of the most commonly done blood tests.
But understanding what each value means helps you make better, more informed choices about your health.
Medivision’s preventive health checkup packages include CBC and other essential tests, helping you look beyond numbers and act early.
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Because informed decisions today lead to healthier tomorrows.