Anemia is a relatively common phenomenon in pregnant women during pregnancy. Due to some physiological factors during pregnancy, such as an average 50% increase in blood volume of pregnant women during pregnancy and vomiting in early pregnancy, the hemoglobin in the blood can be relatively lower or insufficient, thus resulting in anemia. When pregnant women have mild anemia, they can be treated with dietary therapy. For example, eat more iron-rich foods, such as animal liver. Animal liver is not only high in iron, but also rich in vitamins and absorbed well. Eating animal liver once a week is good for preventing anemia. Lean meat and eggs are also rich in iron, and it is also important to eat more fresh vegetables, as they are also rich in folic acid. For pregnant women with moderate anemia or above, in addition to improving nutrition and dietary therapy, they can be treated with oral iron supplements such as ferrous sulfate, ferrous gluconate, ferrous fumarate and so on. Iron supplements should be taken under the guidance of a doctor. Because iron has an irritating effect on the stomach mucosa and can cause nausea and stomach discomfort, iron should be taken after meals or during meals. It is normal for the stool to be black after taking iron supplements. Pregnant women should maintain a good mood and exercise properly, which will also improve their immunity and can also play a role in preventing anemia.