Due to anemia, pregnant women have low plasma protein concentration, produce few antibodies, and weaken macrophages, resulting in reduced immunity, poor disease resistance, and prone to infection. The lower the hemoglobin content of a mother, the greater the possibility of postpartum infection. Pregnant mothers suffering from iron deficiency anemia will affect the development of the fetus and affect the fetal iron reserves, which may cause the baby to suffer from iron deficiency anemia early after birth. Iron deficiency before pregnancy can easily lead to premature birth, insufficient maternal weight gain during pregnancy, and low birth weight of the newborn.

When pregnant women are anemic, the blood's ability to carry oxygen is low. There will be no symptoms in chronic mild anemia. However, in severe anemia or acute excessive blood loss, the heartbeat will accelerate and the output will increase. Blood flow accelerates, increasing the burden on the heart. The fetus needs to absorb iron in the placenta to grow and develop. This iron comes from the nutrition of the pregnant mother. Once severe anemia occurs, the fetus may suffer from developmental delays, premature birth, or even stillbirth. Severe iron deficiency in the placenta will cause hypoxia.

If pregnant women are anemic, the fetal liver will not be able to store more iron, causing the fetus to be unable to synthesize hemoglobin in the early stages, affecting the production of dopamine in the brain, and ultimately affecting the newborn. The child's intellectual development, iron deficiency anemia in pregnant women can also affect health, consume vitality, and make it difficult for the body to resist infectious diseases. Pregnant women are more likely to have problems if they become anemic later in pregnancy and lose a lot of blood during delivery.

Generally, during the prenatal check-up, if anemia is found, the doctor will recommend dietary supplements, such as duck blood, red beans, etc. If the supplement cannot be taken up, the doctor will prescribe medicine. It is recommended to supplement iron supplements after 13 weeks of pregnancy, because at this time, the usual diet alone can no longer meet the demand for iron supplements, and additional iron is needed to supply the developing baby and placenta, especially in the second and third trimesters. During pregnancy, eat more liver, red meat, shellfish, beans, brown sugar, raisins, etc.