Basophils

Basophils are the least common white blood cells. They play a role in allergic reactions and release histamine during inflammation.

Category: Complete Blood Count

Also known as: basophils, baso, basophil %, basos

Reference range: 0–1 % (Source: ABIM)

Standard unit: %

High values may indicate

High basophils (basophilia) may indicate allergic reactions, chronic myeloid leukemia, hypothyroidism, or inflammatory conditions.

Low values may indicate

Low basophils are generally normal, as they make up a very small percentage of white blood cells.

Source: MedlinePlus, U.S. National Library of Medicine

Track your Basophils over time with BloodId