What is leukocytosis? Leukocytosis is a condition that causes you to have too many white blood cells (WBC). WBCs are part of your immune system and help fight infections and diseases.

What causes or increases my risk for leukocytosis?

What are the signs and symptoms of leukocytosis? You may not have any signs or symptoms. Symptoms are often from the cause of the leukocytosis. The following are common symptoms:

How is leukocytosis diagnosed? Your caregiver may ask about your medical history. He will also ask what medicines you take, and if you have any allergies. Blood tests will show the number and shape of your WBCs. They will show if you have too much of one type of WBC. They may also help to find the cause of your leukocytosis. You may also need a bone marrow test to find the cause of your leukocytosis.

How is leukocytosis treated? Your WBCs may return to normal without treatment. Your caregiver will treat the cause of your leukocytosis. You may also need any of the following:

When should I contact my caregiver?

When should I seek immediate care or call 911?


You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your caregivers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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