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Excess white blood cells or leukocytosis occurs when there are more than 11,000 white blood cells or leukocytes in every microliter of blood. The number of white blood cells can only be known through a blood test, and this condition is usually detected during a complete blood count to diagnose a disease.
Symptoms of excess white blood cells vary widely, depending on the disease that causes it. Patients whose blood test results show an increased white blood cell count may come to the doctor with complaints of fever, prolonged cough, tiredness and fatigue, night sweats, easy bruising, frequent nosebleeds and frequent bleeding gums, drastic weight loss, or even shortness of breath. .
Diseases that Cause Excess White Blood Cells
Some examples of diseases that can cause an increase in white blood cells are:
1. Severe allergies
An increased white blood cell count can be triggered by an allergic reaction. That is why, people who are suffering from severe allergic reactions can experience an increase in the number of white blood cells.
2. Rheumatoid arthritis
Excess white blood cells can be triggered by disease rheumatoid arthritis. This condition not only causes an increase in white blood cells, but also causes pain, swelling, and redness in the affected joint area.
3. Leukemia
Excess white blood cells can be caused by leukemia. This condition causes the number of white blood cells to increase due to a disorder in the cells in the bone marrow that function to produce blood cells.
4. Tuberculosis
Increased production of white blood cells can also be triggered by tuberculosis, which is caused by bacteria Mycobacterium tuberculosis. This disease is characterized by symptoms in the form of a prolonged cough (more than 3 weeks), phlegm, and sometimes bleeding.
5, Polysthemia vera
Although it triggers an increase in the production of red blood cells in excess, polycythemia vera can also cause an above normal white blood cell count. This condition is caused by abnormalities in the bone marrow and is more common in men than women.
In addition to these diseases, an increase in the number of white blood cells can also be caused by various other diseases, such as whooping cough, lymphoma, and lupus.
Because there are many conditions that can cause an excess of white blood cells, your doctor will usually carry out further tests to be sure. After the cause is known, then the doctor can provide appropriate treatment.