Definition of aplastic anemia
: anemia that is characterized by defective function of the blood-forming organs (as the bone marrow) and is caused by toxic agents (as chemicals or X-rays) or is idiopathic in origin
First Known Use of aplastic anemia
Medical Definition of aplastic anemia
: severe anemia that results from defective functioning of the bone marrow with an abnormal reduction in blood cells and that is characterized especially by headache, fatigue, paleness, fever, recurrent infections, bruising or rashes, and rapid or irregular heartbeat ◆Aplastic anemia is often of unknown cause but may occur as a congenital or inherited condition (as in Fanconi's anemia) or be caused by exposure to toxic agents (such as chemicals, drugs, or X-rays) or infection with pathogens (such as hepatitis virus or HIV) —called also hypoplastic anemia
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