• Sun. Dec 3rd, 2023

Healthcare Definition

Healthcare Definition, You Can't Live Withou It.

Meaning, Causes, Symptoms and Treatment


Leukocytosis is a condition that affects the white blood cells in our bodies. While it may sound intimidating, understanding what leukocytosis is and its potential causes and symptoms can help you stay informed about your health. Whether you’re a medical student or simply curious about this condition, we’ve got you covered. In this article, we will delve into the definition of leukocytosis, explore its various symptoms and underlying causes, discuss the diagnostic process, and shed light on the treatment options available.

Definition of Leukocytosis

Leukocytosis is a medical term that describes an increased number of white blood cells in the body. White blood cells play a crucial role in defending the body against infections and diseases. When there is leukocytosis, it means that there is an abnormal increase in these cells beyond the normal range.

Symptoms of Leukocytosis

Symptoms of Leukocytosis can vary depending on the underlying cause. In general, common signs and symptoms include fever, fatigue, weakness, and increased susceptibility to infections.

Other Leukocytosis symptoms that may be seen are frequent infections or recurrent infections that take longer than usual to clear up. Some people with leukocytosis might also notice unexplained weight loss or night sweats. It is important to note that these symptoms can vary depending on the underlying cause of the condition.

Specific symptoms based on underlying causes

In some cases, leukocytosis may not present any noticeable symptoms and may only be detected through routine blood tests. However, when symptoms do occur, they can range from mild to severe. Some common signs and symptoms include fatigue, fever, weight loss, enlarged lymph nodes, and frequent infections. Additionally, specific symptoms may manifest based on the underlying cause of leukocytosis.

For example, the increased white blood cell count is due to an infection or inflammation in the body such as pneumonia or appendicitis. In that case, patients may experience additional symptoms related to these conditions.

On the other hand, if leukocytosis is caused by certain types of cancer like leukaemia or lymphoma, individuals may exhibit bone pain or unexplained bruising and bleeding. Healthcare professionals need to consider these specific symptoms when diagnosing and treating leukocytosis to address its root cause effectively.

Causes of Leukocytosis

Nonmalignant causes trigger an increased production of white blood cells in response to infection or inflammation in the body. Infections like pneumonia or appendicitis can lead to leukocytosis. Additionally, chronic inflammatory diseases like rheumatoid arthritis or ulcerative colitis can also cause elevated white blood cell counts.

Malignant leukocytosis causes are typically associated with cancers affecting the blood or bone marrow. Conditions like leukaemia or lymphoma disrupt average white blood cell production, leading to excessive amounts in circulation.

Diagnosis of Leukocytosis

Diagnosis of Leukocytosis involves a thorough examination and testing to identify the underlying cause. The process typically begins with taking a detailed medical history and conducting a physical examination. During this evaluation, healthcare professionals may look for signs such as fever, enlarged lymph nodes, or abnormal findings in the spleen or liver.

To confirm the diagnosis and determine the specific cause of leukocytosis, laboratory tests are performed. These can include complete blood count (CBC Test), which measures the levels of different types of white blood cells, as well as other blood tests to evaluate organ function and detect any abnormalities.

Medical history and physical examination

The healthcare provider will ask about your symptoms, medical history, and any recent illnesses or infections. They will also conduct a physical examination to check for signs such as enlarged lymph nodes or an enlarged spleen.

During the physical exam, the healthcare provider may listen to your heart and lungs, feel your abdomen for any abnormalities, and check for signs of infection such as redness or swelling. They may also take your vital signs like blood pressure and temperature.

Treatment of Leukocytosis

Treatment of Leukocytosis involves addressing the underlying cause and managing any associated symptoms. For nonmalignant leukocytosis, treatment options may include medications to control inflammation or infection and lifestyle changes such as maintaining a healthy diet and exercise routine. In some cases, close monitoring and periodic blood tests may be necessary to ensure that the white blood cell count returns to normal.

In cases of malignant leukocytosis, treatment approaches can vary depending on the specific type and stage of cancer. Options may include chemotherapy, radiation therapy, targeted therapies, or stem cell transplantation. The goal is to reduce the number of abnormal white blood cells while minimizing damage to healthy cells. Treatment plans are tailored to each individual’s needs and may involve a multidisciplinary team of healthcare professionals for optimal care.

Prevention and Outlook

Maintaining a healthy lifestyle with regular exercise, a balanced diet, and adequate rest can help support a strong immune system. Avoiding exposure to toxins, such as tobacco smoke and harmful chemicals, is also crucial. Additionally, practising good hygiene habits like washing hands frequently can prevent infections that may lead to leukocytosis.

The outlook for individuals with leukocytosis varies depending on the cause and severity of the condition. Nonmalignant forms of leukocytosis are generally treatable and have a positive prognosis when managed properly.

On the other hand, malignant leukocytosis caused by conditions like leukaemia or lymphoma requires more aggressive treatment approaches and may have a less favourable outcome. 

Book CBC Test


Leukocytosis is a condition characterized by an elevated white blood cell count in the body. It can be caused by various factors, including infections, inflammation, medications, and even certain types of cancer. The symptoms of leukocytosis can vary depending on the underlying cause but may include fever, fatigue, and increased susceptibility to infections. If you suspect you have leukocytosis or are experiencing any concerning symptoms, it is recommended to consult a healthcare professional for proper evaluation and diagnosis. Book a test with Metropolis Labs for accurate results from the comfort of your home. With early detection and proper care, individuals with leukocytosis can lead healthy lives and effectively manage their condition.




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