Ferritin values in the range of 35-55 μg/L during pregnancy are normal. The demand of ferritin is high during pregnancy due to the growth and development of pregnant women and fetus, so once the intake of iron is insufficient or metabolism is too fast, iron deficiency and ferritin decline will occur, which can cause iron deficiency anemia in pregnant women in clinical practice. In order to prevent as well as improve iron deficiency anemia in pregnant women, pregnant women should pay attention to the following points in their daily life: 1. Iron deficiency anemia generally requires iron supplements, which can be taken orally with vitamin C, which can promote the absorption of iron, but pay attention to the digestive side effects of iron; 2. Avoid drinking milk, coffee, strong tea, etc. when taking iron, so as not to affect the absorption of iron. You can eat more lean meat, animal offal, mushrooms, fungus, etc., and more fresh vegetables and fruits; 3. Iron deficiency anemia generally does not require blood transfusion, but if there is a severe decrease in hemoglobin and other indications for transfusion, red blood cell transfusion therapy can be given according to the doctor’s recommendation if necessary. It is recommended to do regular maternity checkups during pregnancy, and pay attention to changes in blood pressure and blood sugar to avoid affecting the growth and development of the fetus. Pay attention to maintain a regular lifestyle, diversified diet, small and frequent meals, and comprehensive nutrition to ensure the needs of fetal growth and development.