Anemia can be considered the most common cause of hematological disorder that more frequent occurs in pregnancy. In developing countries, anemia is a cause of serious different disease, besides many other important effects on the pregnant and the fetus it contributes significantly high maternal mortality and morbidity. According to world Health Organization statistics, up to 56% of all women living in developing countries are anemic the most common cause of anemia in pregnant woman is lack of iron (ferritin deficiency). Less than that, it is caused by folic acid deficiency. In some populations, 82% of pregnancy are anemic. The most risk are women from low socio-economic people and young women. Anemia is easily definition by estimating the hemoglobin concentration and also examining a peripheral blood smear for the characteristic red blood cell changes. The supply of ironis indicated during pregnancy to prevent the possible complications.