Immature Granulocytes
Immature granulocytes are young neutrophil precursors (promyelocytes, myelocytes, metamyelocytes) that are normally confined to bone marrow. Their appearance in blood (a left shift) signals rapid neutrophil turnover from severe bacterial infection, sepsis, inflammation, or bone marrow stimulation, and in rare cases reflects underlying myeloid malignancy.
5 providers include this
Complete Blood Count (CBC)
<1% of WBC
What is Immature Granulocytes?
Immature granulocytes are young neutrophil precursors (promyelocytes, myelocytes, metamyelocytes) that are normally confined to bone marrow. Their appearance in blood (a left shift) signals rapid neutrophil turnover from severe bacterial infection, sepsis, inflammation, or bone marrow stimulation, and in rare cases reflects underlying myeloid malignancy.
Why It Matters
Elevated in infections, inflammation, and bone marrow stress. Early indicator of immune system activation. Can signal severe infection or leukemia.
Which Providers Test Immature Granulocytes?
Full Provider Comparison
| Provider | Includes | Annual Cost | Biomarkers |
|---|---|---|---|
 Superpower | — | $199 | 100+ (150 with ratios) |
 WHOOP Advanced Labs | — | $349 | 65 |
 Labcorp OnDemand | — | $398 | 40+ |
| — | $486 | 40+ | |
| — | $449 | 288 | |
| — | $349 | 100+ | |
| — | $829 | 54 | |
 Function Health | ✓ | $365 | 160+ |
| — | $250 | 65 | |
| — | $495 | 80+ | |
| ✓ | $895 | 100+ | |
| ✓ | $1950 | 130+ | |
| — | $375 | 95+ | |
| — | $Varies | 75+ | |
| — | $190 | 100+ | |
| — | $99 | 50 | |
| — | $124 | 60 | |
| — | $349 | 130+ | |
| — | $349 | 80+ | |
| ✓ | $375 | 85 | |
| ✓ | $700 | 128 | |
| — | $99 | 100+ |
Frequently Asked Questions
What is Immature Granulocytes?
Immature granulocytes are young neutrophil precursors (promyelocytes, myelocytes, metamyelocytes) that are normally confined to bone marrow. Their appearance in blood (a left shift) signals rapid neutrophil turnover from severe bacterial infection, sepsis, inflammation, or bone marrow stimulation, and in rare cases reflects underlying myeloid malignancy.
What is the optimal range for Immature Granulocytes?
The standard reference range for Immature Granulocytes is <1% of WBC. Optimal ranges may differ based on individual health goals and expert recommendations.
Which blood test providers include Immature Granulocytes?
5 out of 22 blood testing providers include Immature Granulocytes in their panels. This biomarker has limited availability.
What category does Immature Granulocytes fall under?
Immature Granulocytes is categorized under Complete Blood Count (CBC). This category includes biomarkers that help assess related aspects of health and wellness.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed:2026-04-12