High white blood cell count, also known as leukocytosis, is a common sign of infection. Various infections can trigger this response, as your body's immune system works to fight off the invading pathogens.
Common Infections Associated with High White Blood Cells:
- Bacterial Infections: These are among the most frequent causes of high white blood cell counts. Common examples include:
- Pneumonia: Infection of the lungs.
- Urinary Tract Infections (UTIs): Infection of the bladder or kidneys.
- Skin Infections: Such as cellulitis or abscesses.
- Food Poisoning: Caused by bacteria like Salmonella or E. coli.
- Viral Infections: While often less severe than bacterial infections, viruses can also lead to elevated white blood cell counts. Examples include:
- The Common Cold: Caused by various viruses.
- Influenza (Flu): A respiratory illness caused by the influenza virus.
- Mononucleosis: "Mono" is a viral infection that primarily affects the lymph nodes.
- Parasitic Infections: These infections, though less common in developed countries, can also lead to elevated white blood cell counts. Examples include:
- Malaria: A mosquito-borne disease that affects red blood cells.
- Toxoplasmosis: A parasitic infection that can affect the brain and other organs.
- Fungal Infections: These infections are typically more severe and can affect various parts of the body. Examples include:
- Candidiasis (Yeast Infection): A fungal infection commonly affecting the mouth, vagina, or skin.
- Aspergillosis: A fungal infection that can affect the lungs.
It's important to note that high white blood cell count is not always indicative of infection. Other conditions, such as stress, inflammation, and certain medications, can also lead to elevated white blood cell counts. If you are experiencing symptoms like fever, fatigue, or pain, it's essential to consult a healthcare professional for diagnosis and treatment.
