Idiopathic aplastic anemiaDefinition: Idiopathic aplastic anemia
is a condition in which the bone marrow fails to properly make
blood cells. Bone marrow is the soft, fatty tissue in the center
of bones. Anemia - idiopathic aplastic Causes, incidence, and
risk factors: Aplastic anemia results from injury to the blood
stem cells, immature cells in the bone marrow that give rise to
all of other blood cells types. The injury causes a decrease in
the number of every type of blood cell in the body -- red cells,
white cells, and platelets. Low numbers of red cells, white
cells, and platelets is a condition called pancytopenia.
Idiopathic means the cause is unknown. However, idiopathic
aplastic anemia is thought to occur when the body reacts against
its own cells. This is called an autoimmune disorder. The
disease may be acute or chronic , and may get worse over time.
There are no known risk factors. Aplastic anemia may also be
caused by certain medical conditions (such as pregnancy or
lupus) or exposure to some toxi