Blood Diseases

Anemias

Aplastic Anemia

What is aplastic anemia?

Aplastic anemia occurs when the bone marrow produces too few of all three types of blood cells: red blood cells, white blood cells, and platelets. A reduced number of red blood cells causes hemoglobin to drop. A reduced number of white blood cells makes the patient susceptible to infection. And, a reduced number of platelets causes the blood not to clot as easily.

What causes aplastic anemia?

Aplastic anemia has multiple causes. Some of these causes are idiopathic, meaning they occur sporadically for no known reason. Other causes are secondary, resulting from a previous illness or disorder. Acquired causes, however, may include the following:

history of specific infectious diseases such as infectious hepatitis
history of taking certain medications, such as antibiotics and anticonvulsants
exposure to certain toxins such as heavy metals
exposure to radiation
history of an autoimmune disease
inherited condition

What are the symptoms of aplastic anemia?

The following are the most common symptoms of aplastic anemia. However, each individual may experience symptoms differently. Symptoms may include:

headache
dizziness
nausea
shortness of breath
bruising
lack of energy or tiring easily (fatigue)
abnormal paleness or lack of color of the skin
blood in stool
nosebleeds
bleeding gums
fevers
sinus tenderness
enlarged liver or spleen
oral thrush - white patches on a red, moist, swollen surface, occurring anywhere in the mouth.

The symptoms of aplastic anemia may resemble other blood disorders or medical problems. Always consult your physician for a diagnosis.

How is aplastic anemia diagnosed?

In addition to a complete medical history and physical examination, diagnostic procedures for anemia include additional blood tests and a bone marrow biopsy.

Treatment for aplastic anemia:
Specific treatment for aplastic anemia will be determined by your physician based on:

your age, overall health, and medical history
extent of the disease
your tolerance for specific medications, procedures, or therapies
expectations for the course of the disease
your opinion or preference

Treatment and supportive therapy may include:

blood transfusion (both red blood cells and platelets)
preventative antibiotic therapy
meticulous handwashing
special care to food preparation (such as only eating cooked foods)
avoiding construction sites which may be a source of certain fungi
medications (to stimulate the bone marrow to produce cells)
immunosuppressive therapy
hormone therapy

This page was last updated on: January 30, 2008.

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