Megaloblastic anemia is a form of macrocytic anemia, a blood infection that occurs when the bone marrow creates stem cells that make abnormally big red blood cells. Megaloblastic anemia is a kind of vitamin deficiency anemia. It occurs when an adequate amount of vitamin B12 and/or vitamin B9 (folate) does not form in the body.
Megaloblastic Anemia - Causes, Symptoms, and Treatment
Megaloblastic anemia occurs when red blood cells are larger and fewer. It happens when you're low on vitamin B12 or folate (B9).