Other names: POLYS
Optimal Result:
40 - 75 %.
Polymorphs (%), also referred to as Neutrophils (%), is a measurement of the proportion of neutrophils in your white blood cell (WBC) count. Neutrophils are a type of polymorphonuclear leukocyte, hence the term "polymorphs." They are the most abundant type of white blood cells and a key component of the body’s innate immune system, responsible for quickly responding to infections, particularly those caused by bacteria and fungi.
This test is commonly included in a Complete Blood Count (CBC) with differential, which shows the relative percentages of different types of white blood cells in your blood.
The percentage of polymorphs helps doctors understand whether your immune system is responding to a stressor like infection, inflammation, or other immune-related conditions. Since it’s a relative value, it shows the proportion of neutrophils in comparison to other white blood cells (e.g., lymphocytes, monocytes, eosinophils, basophils).
The normal range for Polymorphs (%) is typically:
40% to 75%, though this can vary slightly depending on the laboratory and population.
An increased percentage of neutrophils (polymorphs) may indicate:
Bacterial infections (most common cause)
Acute stress or trauma
Inflammatory conditions (e.g., rheumatoid arthritis)
Steroid use
Cigarette smoking
Post-surgical response
Certain types of leukemia
A high neutrophil percentage doesn’t always mean there's a serious issue, but it often suggests the body is responding to an infection or inflammation.
A decreased neutrophil percentage may be seen in:
Viral infections (e.g., flu, mono)
Certain bacterial infections (especially if prolonged or overwhelming)
Autoimmune diseases (e.g., lupus)
Bone marrow suppression
Severe nutritional deficiencies
Chemotherapy or radiation treatment
It may also appear low if another type of white cell (like lymphocytes) is disproportionately elevated—this is known as a relative decrease.
A percentage alone does not reflect the total number of neutrophils in your body. For a complete picture, the Absolute Neutrophil Count (ANC) should also be evaluated (this is reported as Polymorphs (Absolute) or POLYS, ABS. COUNT).
The neutrophil percentage is best interpreted in context with other parts of the CBC and the patient’s symptoms and medical history.
Polymorphs (%) is a valuable marker that helps assess how your immune system is functioning. It provides insights into infections, inflammation, and immune responses. However, it's only one part of the puzzle. Your healthcare provider will interpret it alongside other blood cell counts and clinical information to reach a diagnosis or monitor a condition.
When "POLYS," or polymorphonuclear leukocytes, are elevated on a hematology test panel, it generally indicates an increase in neutrophils. Neutrophils are a type of white blood cell essential for fighting infections and are typically the first responders to bacterial infections and inflammatory conditions. Elevated levels of POLYS can suggest that the body is responding to an infection, inflammation, stress, or other factors such as trauma or certain medications.
Possible Causes of Elevated POLYS:
Bacterial Infections: The most common reason for elevated POLYS is an active bacterial infection. The body produces more neutrophils to help combat the infection and protect against further spread.
Inflammatory Conditions: Autoimmune diseases like rheumatoid arthritis or inflammatory conditions such as inflammatory bowel disease can also elevate POLYS as part of the immune response.
Stress and Trauma: Physical stress, surgery, trauma, or intense exercise can sometimes lead to a temporary increase in POLYS.
Medications: Some medications, including corticosteroids, may increase neutrophil levels by causing them to be released from storage in the bone marrow.
Chronic Health Conditions: Conditions like chronic kidney disease, certain cancers, and other chronic inflammatory states can also elevate POLYS.
Interpretation and Next Steps:
If POLYS are elevated, it’s important to consider the full clinical picture, including symptoms, medical history, and other test results. Often, an elevated POLYS count is temporary and resolves once the underlying cause is treated. However, if levels remain high without an obvious cause, further investigation may be needed to rule out underlying infections, inflammatory diseases, or other health issues.
Your healthcare provider can guide you on the significance of this finding in your specific context and whether any additional tests or treatments are needed.
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.
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A decreased Polymorphs (%), or low neutrophil percentage, can indicate a condition called relative neutropenia or may reflect a shift in the white blood cell profile, where other types of white blood cells (like lymphocytes) make up a higher proportion of the total. Here's what a decreased Polymorphs (%) may suggest:
Viral infections like influenza, Epstein-Barr virus (EBV), hepatitis, or HIV often reduce the neutrophil percentage while increasing lymphocyte counts.
This is a common and often temporary shift in white blood cell populations during the body's response to a virus.
If the bone marrow is unable to produce sufficient neutrophils, both the percentage and absolute count may decrease.
Causes include:
Chemotherapy or radiation therapy
Certain medications (e.g., immunosuppressants)
Aplastic anemia or other bone marrow disorders
Conditions such as lupus (SLE) or rheumatoid arthritis may cause immune-mediated destruction or suppression of neutrophils.
In late stages of overwhelming bacterial infections (called sepsis), neutrophils may be consumed faster than they are produced, leading to a decrease.
Deficiencies in vitamin B12, folate, or copper can impair bone marrow function and neutrophil production.
An enlarged spleen can sequester or destroy neutrophils, reducing their number in the bloodstream.
Rare disorders like Kostmann syndrome or cyclic neutropenia involve inherited neutrophil deficiencies.
A low neutrophil percentage does not always mean a low absolute number. You could still have a normal number of neutrophils if your total white blood cell count is high.
A true low neutrophil count (called absolute neutropenia) is more concerning and increases your risk of infections.
You should consult a healthcare provider if:
You have recurrent infections (especially bacterial or fungal)
Your neutrophil percentage is persistently low
You are undergoing chemotherapy or immunosuppressive therapy
Your blood work shows multiple abnormal immune markers
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Our user-friendly form guides you through a quick, simple submission process, making it easy to enter your health metrics.
Add your results anytime with our easy entry form. It's quick, guided, and helps you stay organized — free for all members.
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View your lab data through easy-to-read graphs and tables. Quickly spot patterns, track changes, and compare results across different dates — all without digging through multiple reports. You can also select and compare graphs of specific biomarkers side-by-side to better understand how they relate and change over time.
See your lab reports in clear graphs and tables. Spot patterns, track changes, and compare results over time — all in one place.
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Export Your Complete Lab History
After collecting lab results from different providers, you can download your entire history combined into a single file. Choose from PDF, Excel, or CSV formats to easily review, share, or get a second opinion—no more juggling multiple reports.
After collecting lab results from different providers, you can download your entire history combined into a single file.
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Data Entry Service for Your Reports
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest. Complete plan members receive one report entered for free, then $15 per report after that. Unlimited plan members receive ten report entries for free, then $15 per report after that.
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest.
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Whether you're working with a doctor, nutritionist, caregiver, or wellness coach, you can securely share your complete lab history by sending an invite link to anyone you trust. You have full control over who sees your information and for how long, ensuring your privacy and peace of mind at every step.
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Healthmatters is a personal health dashboard that helps you organize and understand your lab results. It collects and displays your medical test data from any lab in one secure, easy-to-use platform.
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If you are still determining whether Healthmatters support your lab results, the rule is that if you can test it, you can upload it to Healthmatters.
While we work with many popular labs, we welcome reports from lots of other places too.
It's as simple as this: if you can get a test done, you can upload it to Healthmatters and we can interpret results from any lab out there. If laboratories can analyze it, we can interpret it.
If you're on the hunt for a specific biomarker, contact us and we'll add it to our database. Anything from blood, urine, saliva, or stool can be uploaded, understood, and tracked with your Healthmatters account.
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In short:
There are two ways to add your test reports to your Healthmatters account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."
Our data entry forms offer an easy, fast, and free way for you to input the reports yourself. Self-entry allows you to add an unlimited number of reports at no cost. We make the self-entry process user-friendly, providing dozens of templates that pre-populate the most popular laboratory panels and offering instant feedback on entered values.
For those who prefer assistance, we offer a "Data entry service" to help you input your data. Simply attach an image or file of your lab test results, and a qualified team member from our data entry team will add the results for you.
We support various file types, including PDFs, JPGs, or Excel. This service is particularly useful if you have many reports to upload or if you're too busy to handle the data entry yourself.
Our Data Entry Service is for when you don't want to manually type in your lab results yourself. You simply upload your report (PDF, image, or screenshot), and our trained team enters the information into your Healthmatters account for you — accurately and neatly organized, ready to view in graphs, tables, and timelines.
The $15 per report covers the time and care it takes for a real person to review your file, make sure each result is entered correctly, and double-check for accuracy. This ensures your health data is precise and easy to work with — without you having to spend the time doing it yourself.
Prefer to do it yourself? You can always use our free self-entry tool to add results manually — it just takes a bit more time and attention.
For users on the Complete monthly plan, the first report is entered free of charge, and each additional report incurs a fee of $15.
Unlimited account holders enjoy the entry of ten reports without charge. Subsequent reports are subject to a $15 fee per report.
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All professional accounts allow you to import and onboard an unlimited number of clients and their lab results. The distinction between professional plans lies solely in the data entry service.
The Pro Monthly Plus plan is priced at $75 per month and includes a data entry service for five reports each month. Additional reports can be self-entered at no extra cost or, if preferred, you can use our data entry service for an additional fee of $15 per report.
The Pro Monthly plan is priced at $45 per month and does not include a data entry service. Self-entry is free for an unlimited number of reports, and you can opt for the data entry service at a fee of $15 per report.
You also have the option to upgrade to higher monthly or to annual plans, which come with substantial discounts. All upgrades can be done directly from your account.
Simply log in and navigate to your account settings to cancel your subscription. Scroll down to locate the 'Cancel' button at the bottom of the page. Ensure you cancel at least one day before the renewal date to prevent any charges. Once cancellation is requested, the subscription remains active until the conclusion of the current billing cycle.
Our goal has been to make your Healthmatters account as intuitive as possible.
We've crafted multiple ways for you to navigate your data, whether you're glancing at a single report or delving into your historical test reports.
1. Graph View:Dive into a visual journey with our biomarker graphs, showcasing over 40 data points. Combining years of results unveils trends, empowering you to make informed decisions. Our visualization tools make it a breeze to compare and understand changes over time, even if your results are from different labs. A search function and filters simplify the exploration of extensive data, allowing you to focus on what needs attention.
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Yes, you can! We highly recommend activating Two-Factor Authentication (2FA) for your account. To do so, please navigate to the "Profile and Security" section of your account, where you will find instructions for activating 2FA.
Yes, you can. When entering values for the biomarker, you will see an "Edit Range" button. Click this button, and you'll have the option to enter a custom range.
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