DefinitionBy Mayo Clinic staff
Myelodysplastic syndromes are a group of disorders caused by poorly formed or dysfunctional blood cells. Myelodysplastic syndromes occur when something goes wrong in your bone marrow — the spongy material inside your bones where blood cells are made.
There is no cure for myelodysplastic syndromes. Treatment for myelodysplastic syndromes usually focuses on reducing or preventing complications of the disease and its treatments. In certain cases, myelodysplastic syndromes are treated with a bone marrow transplant, which may help prolong life.
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