Secondary aplastic anemia is a failure of the bone marrow to make enough blood cells. All blood cell types are affected.
Anemia - secondary aplastic; Acquired aplastic anemia
Causes, incidence, and risk factors
Secondary aplastic anemia is caused by injury to blood stem cells. Normal blood stem cells divide and turn into all blood cell types, mainly white blood cells, red blood cells, and platelets. When blood stem cells are injured, there is a reduction in all blood cell types.
This condition can be caused by:
- Certain drugs
- Disorders present at birth (congenital disorders)
- Drug therapy to suppress the immune system
- Radiation therapy
- Toxins such as
When the cause is unknown, it is referred to as
The disease may be