Neutrophils are a type of cell belonging to the white blood cell (WBC) group. This family is commonly referred to as the “leukocytes,” and their primary function is to protect our bodies from stressors and infection. A mature neutrophil circulating in the bloodstream will have a divided or segmented nucleus. The nucleus of a less mature neutrophil will not be separated but will have a rod-like “band” shape. When our bodies have succumbed to an infection, such as an acute bacterial infection, the total number of mature neutrophils and band neutrophils will increase in response. This process is referred to as a “shift to the left” and indicates an infection. The test ordered to assess band neutrophil concentration is called a “differential blood count,” and it measures all five types of WBCs in the leukocyte group. The results of this test can help to reveal any abnormalities in the WBCs (i.e., an increase in “immature” band neutrophils).
Normal Ranges:
Band neutrophils should account for only 0%-6% of white blood cells.
Lab Results Explained and Tracked
What does it mean if your Band Neutrophils (%) result is too high?
An elevated concentration of band neutrophils in the blood is always the result of infection or inflammation. In the instance of infection, the source is likely bacterial. The causes of inflammation are varied. Physical stressors like exercise, seizures, anxiety, tobacco use, burn injuries, heart attack, appendicitis, and splenectomy can result in inflammation. There are a few chronic conditions that lead to inflammation, such as inflammatory bowel disease and arthritis. Certain medications (corticosteroids or epinephrine) are known to elevate neutrophils in the blood. Most severely, an inflated level of band neutrophils may be due to chronic myelogenous leukemia—a cancer that starts inside the bones where white blood cells are produced.
All Your Lab Results.
One Simple Dashboard.
Import, Track, and Share Your Lab Results Easily
Import, Track, and Share Your Lab Results
Import lab results from multiple providers, track changes over time, customize your reference ranges, and get clear explanations for each result. Everything is stored securely, exportable in one organized file, and shareable with your doctor—or anyone you choose.
Cancel or upgrade anytime
Related Biomarkers
Article Review & Sources
All our content is backed by peer-reviewed studies, academic research, and trusted medical sources. We're committed to accuracy and transparency — see our editorial policy for details.
Laboratories
Bring All Your Lab Results Together — In One Place
We accept reports from any lab, so you can easily collect and organize all your health information in one secure spot.
Pricing Table
Gather Your Lab History — and Finally Make Sense of It
Finally, Your Lab Results Organized and Clear
Personal plans
$79/ year
Advanced Plan
Access your lab reports, explanations, and tracking tools.
- Import lab results from any provider
- Track all results with visual tools
- Customize your reference ranges
- Export your full lab history anytime
- Share results securely with anyone
- Receive 5 reports entered for you
- Cancel or upgrade anytime
$250/ once
Unlimited Account
Pay once, access everything—no monthly fees, no limits.
- Import lab results from any provider
- Track all results with visual tools
- Customize your reference ranges
- Export your full lab history anytime
- Share results securely with anyone
- Receive 10 reports entered for you
- No subscriptions. No extra fees.
$45/ month
Pro Monthly
Designed for professionals managing their clients' lab reports
- Import lab results from any provider
- Track lab results for multiple clients
- Customize reference ranges per client
- Export lab histories and reports
- Begin with first report entered by us
- Cancel or upgrade anytime
About membership
What's included in a Healthmatters membership
Import Lab Results from Any Source
See Your Health Timeline
Understand What Your Results Mean
Visualize Your Results
Data Entry Service for Your Reports
Securely Share With Anyone You Trust
Let Your Lab Results Tell the Full Story
Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.
Bring all your results together to compare, track progress, export your history, and share securely.
What Healthmatters Members Are Saying
We implement proven measures to keep your data safe.
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.