Pregnant women should not drink tea during pregnancy, mainly because of the following points: 1, tea contains theophylline, which has a stimulating effect on the central nervous system can refresh, and pregnant women are prone to mental irritability and insomnia during pregnancy, if drinking tea may lead to increased insomnia, which is not conducive to the health of the pregnant woman and the fetus. 2, tea contains tannic acid, which affects the body’s absorption of iron. Iron absorption, and pregnant women during pregnancy, the amount of iron required will be relatively large, if drinking tea will lead to iron absorption is impaired, causing iron deficiency anemia, will affect the normal development of the fetus, if the phenomenon of anemia is more serious, may also lead to anemia heart disease, and even hemorrhage in the process of delivery. Pregnant women should avoid drinking tea, coffee and other stimulating drinks during pregnancy, and should drink more fresh fruit juice and plain water.