Ferritin 4.7 alone in early pregnancy is not serious and requires intervention if combined with decreased hemoglobin. Ferritin is a protein in the body that mainly serves to store iron, transport iron, regulate iron homeostasis, and regulate reactive oxygen species, and is found in various organs and tissues of the body, with small amounts of ferritin in normal human serum. Low serum ferritin levels often occur in infants, children, and women of childbearing age. Pregnant women also have lowered ferritin levels during pregnancy and when acute anemia is lowered. If a pregnant woman simply has lowered ferritin without hemoglobin abnormalities, it is not serious. If a pregnant woman has a decrease in hemoglobin, the main indicator of anemia, during the examination, it is necessary to apply iron supplements with ferrous succinate. Specific medication should be administered under the supervision of a doctor. In the process of iron supplementation, try to choose as little spicy and stimulating food as possible, as well as try to avoid drinking strong tea, otherwise it will interfere with iron absorption. You can promote iron absorption by dividing the food into food combinations, such as vitamin C supplementation.