Complete blood count (CBC), explained
The most common blood test. It counts your red cells, white cells and platelets — and tells a lot about oxygen, immunity and iron.
Three things we do that a printed range doesn’t
Ranges change with both. We use the set for you — 26 range sets in total.
Values change each other’s meaning. We show the links, not just the list.
WHO, NORIP (Nordic Reference Interval Project). Organisation, document, year.
Hemoglobin — the ranges we use
WHO: a low level means anemia (fatigue, shortness of breath); the limits are sex-specific.
| Rating | Range |
|---|---|
| Talk to a doctor | below 110 g/L |
| Worth improving | 110 – 120 g/L |
| No rating | 120 – 130 g/L |
| Good | 130 g/L and above |
This marker also has 2 age- or sex-specific range sets in the app — the table shows the general one.
Articles in this guide
- Complete blood count (CBC): what the basic blood count meansMarker explained
- White blood cell differential: what each type of white cell meansComplete blood count (CBC)
- Biological age: what it is and how to slow it downSupplements & longevity
- High or low lymphocytes: what your blood test meansComplete blood count (CBC)
- MCV, MCH and MCHC: what high and low red cell indices meanComplete blood count (CBC)
- High monocytes and basophils: what they mean on a blood testComplete blood count (CBC)
- High or low platelet count: what it means and when to worryComplete blood count (CBC)
- High or low white blood cell count (WBC): what it meansComplete blood count (CBC)
This content is for information only and is not a substitute for medical advice. Talk to your doctor about your results.
Good to know
Is my hemoglobin low?
Upload your report and you’ll see the answer for your exact value, age and sex — with the source of the range. In general: one value outside the printed range is rarely an emergency; the pattern and the trend matter more.
Do I need a new test?
No. Upload the one you already have. If a re-test is useful, the plan tells you when.
Is this a diagnosis?
No. It is an explanation to help you and your doctor. When a value needs a doctor, we say so.