Macrocytic anemia happens when you have large red blood cells and not enough normal-sized red blood cells. It can result from a vitamin deficiency or an underlying condition like hypothyroidism.

Anemia, defined as a hemoglobin level two standard deviations below the mean for age, is prevalent in infants and children worldwide. The evaluation of a child with anemia should begin with a thorough ...

Macrocytic anemia causes a person to have large red blood cells that cannot carry enough oxygen throughout the body. The symptoms mimic other kinds of anemia but the treatment depends on the ...