Basophil share Basophils (%)
The smallest share of your white cells, involved in allergic reactions.
Also printed asBasophil Percentage · Basophils % · Basophil % · Baso %
What it measures
The share of your white cells that are the rarest type, involved in allergic reactions.
Little on its own; a persistently raised count is followed up rather than acted on.
Why it matters for how long you stay well
It almost never changes a decision on its own and is read as part of the differential rather than as a finding.
How it shows up in daily life
You will never notice this one moving; the numbers are far too small.
High and low readings
When it reads high
Usually a minor allergy signal.
When it reads low
Low is fine.
What moves it
Daily life
- allergy
- long-running inflammation
Medicines known to shift it
- steroids (lower it)
Listed so a result can be read in context. It is not advice to start, stop or change any medicine; that decision belongs with your physician.
Common questions
What does Basophils (%) measure?
The share of your white cells that are the rarest type, involved in allergic reactions. Little on its own; a persistently raised count is followed up rather than acted on.
What does a high Basophil share result usually mean?
Usually a minor allergy signal.
What does a low Basophil share result usually mean?
Low is fine.
What is the usual reference range for Basophil share?
A broad adult reference band is below 2 %. Labs differ, so read your result against the band printed on your own report.
Educational only, not a diagnosis. A single number means little without your history and the rest of your panel, so discuss your own results with your physician.
Typical adult reference band
- Adults
- below 2 %
Labs differ. The band printed on your own report is the one that applies to your result.
Reported in %
Ageing relevance
1/5
A general health marker with limited direct ageing data.
Worth knowing
They are the rarest white cell, often only a handful in the entire sample.
Have a report with this marker on it? Read it in context.
Upload it to Oraia, our health-intelligence tool, for a plain-language read of your markers that a Genoryx doctor can review.
Your biological age is a number you can measure.
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