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Megaloblastic refers to a type of anemia characterized by the presence of abnormally large red blood cells, known as megaloblasts, in the bone marrow. This condition is typically caused by a deficiency in vitamin B12 or folate, which are essential for the production of healthy red blood cells. Symptoms of megaloblastic anemia may include fatigue, weakness, pale skin, and shortness of breath. Treatment often involves supplementation with vitamin B12 or folate to correct the underlying deficiency and improve red blood cell production.