General Health
Neutrophilia: The Immune System’s Red Flag
Always being on the guard isn’t fun, right? It's the same for your body. Neutrophilia is a defence mechanism that kicks into overdrive due to underlying threats. Understand neutrophilia to keep it in check.
Sep 27, 2024
•5 min read
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As a health enthusiast, you're likely diligent about your annual health check-ups. While you may not notice anything unusual apart from the occasional sniffle, daily fatigue, or body aches, a routine blood test could reveal a surprising term — neutrophilia. It may sound alarming, but there’s no need to panic. When your body is threatened by bacteria, stress, or other disruptions to its normal functioning, it activates neutrophils in large numbers to protect itself. Neutrophilia, defined by an increased count of neutrophil cells in the blood, is your body’s way of signalling that something needs attention. All you need to do is listen closely and take proactive steps.
Quick explainer
The absolute neutrophil count (ANC) represents the percentage of neutrophils in the bloodstream. For adults, the typical range is between 2,500 and 7,000 neutrophils per microliter (microL). Neutrophilia, the most common form of leukocytosis, occurs when the ANC rises above approximately 7,700 neutrophils per microliter.
What is neutrophilia
Neutrophils are a type of white blood cells that serve as the frontline soldiers of your immune system. Their primary role is to identify and combat infections, either by engulfing and digesting harmful particles or by releasing chemicals to eliminate them. Once the threat is neutralised, these cells typically return to normal levels. However, there are times when neutrophils remain persistently elevated without an apparent reason, leading to neutrophilia. Neutrophilia can be of two types:
Primary neutrophilia: This type refers to abnormalities in neutrophil production that may be present since birth without any apparent cause.
Secondary neutrophilia: This type can be triggered by secondary causes, such as smoking, infection, inflammation, medications, stress, and malignancy. It is also known as reactive neutrophilia.
Causes of neutrophilia: A deep dive into the underlying factors
Here’s a closer look at the different causes of neutrophilia to help you understand it better.
- Acute Infections: Bacterial infections commonly result in higher neutrophil levels, unlike infections caused by viruses, fungi, or parasites. Symptoms like fever, chills, swollen lymph nodes, and fatigue could indicate a potential bacterial infection.
- Cigarette Smoking: Smoking is a common cause of mild neutrophilia. The good news? Neutrophil levels gradually drop back to normal once smoking is stopped.
- Stress: Physical as well as mental stress can trigger a rise in neutrophils. Even exercise can lead to a short-term increase in these white blood cells.
- Cancer: Some cancers can lead to elevated neutrophil counts. If symptoms such as swelling or lumps, poor appetite, or unintended weight loss appear, it's helpful to seek a medical opinion.
- Neutrophilia can also result from recent surgeries or the use of certain medications.
Did You Know?
Neutrophilia, defined by high levels of neutrophils in the blood, can be present at birth or caused due to stress, infections, or serious diseases.
Symptoms of neutrophilia: Be aware, not anxious
Neutrophilia often signals an underlying health issue rather than being the direct cause of symptoms. Along with common signs, other complications and lifestyle factors can contribute to its development.
- Additional symptoms: Recurrent infections, dizziness or fainting, hypothermia, breathlessness, skin rashes, non-healing wounds, abscesses, and swollen or painful joints.
- Underlying cause: These symptoms occur due to the health condition causing neutrophilia, not neutrophilia itself.
- Impact of lifestyle: Poor diet, physical inactivity, and chronic stress can weaken the immune system, making it less effective at fighting infections. When the immune system is compromised, the body becomes more vulnerable to illness and may struggle to recover properly. Over time, prolonged stress can also worsen mental health issues, which can indirectly contribute to neutrophilia and make managing overall health more challenging.
What to expect during your health consultation
Frequently recurring or worsening symptoms that interfere with your work and productivity, along with the emergence of new symptoms, are signs that you should see your healthcare provider as soon as possible. They will jot down your medical history, take your vitals, and recommend further testing if needed to determine the reason behind the neutrophilia. Once the underlying condition is diagnosed, your healthcare provider will explain the necessary treatment and what outcomes you can expect.
Tips to keep neutrophilia at bay
In general, neutrophilia cannot be prevented entirely; a person is either born with it or develops it in response to a health hazard. The good news is that if you haven’t been diagnosed with anything substantial, you could keep neutrophilia at bay by following these simple self-care tips:
- Consider making a commitment to quit smoking.
- Maintain a healthy weight and exercise regularly. Your healthcare provider will suggest the ideal weight for you.
- Consume a balanced meal at regular times and limit junk food intake.
- Learn relaxation techniques to manage physical as well as emotional stress.
- Safeguard yourself against common infections by practising good hygiene. Wash your hands regularly, wear masks in crowded areas, and stay up-to-date with your annual health check-ups.
Quick Tip
Consume a balanced meal at regular times and limit junk food intake.
Boost your immunity with vitamins and minerals
Vitamins and minerals strengthen the immune system to fight infections and diseases. Lack of these nutrients makes your body vulnerable to frequent illness. Ensure you get enough vitamins and minerals through fresh fruits, vegetables, nuts, seeds, and protein-rich food. A balanced diet will help your body fight infections effectively and prevent neutrophilia.
Key points — stay informed, stay calm
Neutrophilia, which means high levels of neutrophils in the blood, may be associated with symptoms such as fever, fatigue, and frequent infections. While neutrophilia itself is not a disease that can be treated directly, it may indicate an underlying condition that needs attention. An unhealthy lifestyle and habits such as smoking, eating junk food, and being under constant stress are red flags for your immunity and potential causes of neutrophilia. Regular health check-ups and adopting healthy habits like smoking cessation, consuming a balanced diet, managing stress, and boosting immunity with sufficient intake of vitamins and minerals can help manage and mitigate the effects of neutrophilia.
Nutritious food, regular exercise, and adequate sleep are all it takes to avoid infections, prevent neutrophilia, and keep your immunity running at full throttle.
Dr Rahul Tambe, Senior Consultant, Internal Medicine, Mumbai
Frequently Asked Questions
1. What are the common health conditions associated with neutrophilia?
Infections caused by bacteria and other health conditions that trigger inflammation in the body, such as cancer, chronic hepatitis, and inflammatory bowel disease, are all associated with neutrophilia.
2. What factors lead to a neutrophil spike in the body?
Exercise, smoking, physical or emotional stress, and reactions to certain medications can all cause a spike in neutrophil levels in the body.
3. Should one be concerned about neutrophilia?
Neutrophilia is the body’s natural defence mechanism, activated in response to threats like infection and inflammation. The real concern lies in identifying and addressing the underlying triggers of neutrophilia, which may require medical attention and treatment.
4. Is neutrophilia a sign of a life-threatening health issue?
Neutrophilia doesn’t always signal a life-threatening condition; it can also result from lifestyle factors like chronic stress, smoking, and poor diet. Regular health check-ups, including a physician consultation, and some self-care can help address these issues early.
5. Which vitamin supports neutrophil health?
While all vitamins and minerals are essential for a well-functioning immune system, vitamins B12 and C specifically support the production and function of all white blood cells, including neutrophils.
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