Leukopenia: Causes of Low White Blood Cells

What is Leukopenia?
Leukopenia is defined as the decreased concentration of the circulating white blood cells (WBC) in the blood stream. It is a blood disease usually caused by a decrease in the granulocyte numbers, particularly the blood neutrophils. However the disorder may also be caused due to a reduction in the lymphocytes, monocytes, eosinophils and basophils.

The normal white blood cell count varies with the age and sex. For an adult male the range is between 4,500 to 11,000 per cubic millimeter of blood. The count is slightly higher in children. If the white blood cell count falls below the normal level the person is diagnosed with leukopenia.

The white blood cells or the leukocytes provide defense mechanism to the body against diseases and infections. A reduction in any of the subtypes of the leukocytes would place an individual at an increased risk of infections.

What Causes It?
Leukopenia is caused by viral infections or congenital disorders of the bone marrow, cancer, anti-immune disorders and pharmaceutical drugs such as clozapine, anti psychotics and immunosuppressants.

The disorder could also be attributed to specific causes like:

• Allergy, especially a severe allergic reaction
• Aplastic anemia: The condition is marked by the failure of the bone marrow in producing new cells to replenish the blood cells.
• Chemotherapy: The treatment of the disease by using chemicals to kill cells causing cancer.
• Radiation therapy
• Leukemia
• Hypersplenism: The disorder caused due to the destruction of the blood cells by the spleen.
• Hyperthyroidism: An overactive tissue within the thyroid gland resulting in the production of excess thyroid hormone.
• Myelofibrosis: A bone marrow disorder where the marrow is subjected to replacement of fibrosis by fibrous tissue.
• Systemic lupus erythematosus: A chronic anti-immunity connective disease affecting parts of the body resulting in tissue damage and infection.
• Rheumatoid arthritis
• Vitamin deficiencies
• Anti-immune diseases
• Congenital diseases
• Parasitic diseases

What are the Symptoms of Leukopenia?
The symptoms of leukopenia are demonstrated depending on the intensity of the disorder. If the leukopenia is mild, then the immune system remains intact and the symptoms are not easily decipherable. However as the severity of the case increases, patients display a tendency to develop infections caused by a failing immune system such as pneumonias, stomatitis and oral ulcers.

Diagnosis and Treatment of Leukopenia - How to Increase White Blood Cells?
A complete blood count test is used to identify leukopenia. Once the person is diagnosed, practitioners prescribe steroids and drugs to increase the neutrophils. In certain cases treatments such as chemotherapy and cytokine therapy have been used. Chronic Leukopenia can lead to vulnerability to the infections, hence it is advisable to consult the doctor and take necessary precautions.