If the expectant mother is determined to have iron deficiency anemia, she must be treated in time, otherwise it is very likely to affect the health of the mother and the development of the fetus, and in severe cases, the pregnancy may be terminated. Why iron deficiency? Iron deficiency anemia is one of the most common diseases among expectant mothers during pregnancy. In the first trimester, the incidence of this disease is about 10%, in the second trimester, the incidence may be as high as 38%, and in the third trimester, the incidence is even higher. Why do expectant mothers suffer from iron deficiency? In fact, many pregnant women often vomit and have no appetite for meals due to early pregnancy symptoms.