The fastest way to replenish blood for iron deficiency anemia in late pregnancy is oral iron therapy to increase the hematopoietic material, and to improve the diet structure of pregnant women by increasing red meat foods such as pork, lamb and beef, as well as iron-rich foods such as blood clots, animal liver, black fungus and spinach. Pregnant women with gastrointestinal disorders and poor absorption of iron can take iron supplements such as iron sucrose by intravenous injection. Since iron deficiency anemia is prone to occur during pregnancy, it is recommended to have a balanced diet and a diversified diet from early pregnancy, and to take iron supplements throughout pregnancy to prevent anemia and avoid it.