Clinicians order Basophils (%) as part of a complete blood count with differential to evaluate immune patterns. It can add clues when allergies, rashes, wheezing, or unexplained inflammation are suspected. Results are most useful alongside the total white blood cell count and other differentials. Follow-up may include reviewing medicines, checking absolute basophils, or repeating the test. You can test this marker with Aniva across Germany and Finland.

Clinicians order Basophils (%) as part of a complete blood count with differential to evaluate immune patterns. It can add clues when allergies, rashes, wheezing, or unexplained inflammation are suspected. Results are most useful alongside the total white blood cell count and other differentials. Follow-up may include reviewing medicines, checking absolute basophils, or repeating the test. You can test this marker with Aniva across Germany and Finland.

High: May appear with allergies, chronic inflammation, thyroid underactivity, recovery after infection, or certain bone marrow conditions. Some medicines (for example, estrogen therapy or lithium) can raise values. Consider checking absolute basophils and related differentials.
Low: Can occur with stress, acute infections, corticosteroid use, thyroid overactivity, or during pregnancy. Often not concerning on its own if other results are stable. Trends over time and how you feel matter more than a single result.

• Complete blood count (CBC)
• White blood cell count
• Eosinophils (%)
• Absolute basophils
• C-reactive protein (CRP)

Common factors that can shift results include corticosteroids, estrogen therapy, lithium, recent infections, allergic flares, intense exercise, dehydration, and time of day. Pregnancy, major stress, and sample handling delays can also affect the white blood cell differential.

Special situations: If you are on immunosuppressants, have thyroid disease, or are recently ill, discuss timing and consider confirming results once you are stable.