Pregnant women are not allowed to eat licorice during pregnancy for the following reasons: first, pregnant women during pregnancy because of the growing uterus, compression of the leg nerves lead to edema in the legs and feet, and licorice has a moisturizing effect, if pregnant women eat will lead to edema more serious, so can not eat. Second, licorice also contains unique active substances that can promote the secretion of prostaglandins in the body of pregnant women, and such substances can cause contractions if over-secretion, so pregnant women consuming licorice during pregnancy may lead to miscarriage. Third, eating licorice during pregnancy can easily lead to an increase in blood pressure, so pregnant women with triglycerides during pregnancy must not eat it. Fourth, licorice is a tonic Chinese medicine, can play a lung cough, detoxification effect, if pregnant women during pregnancy, toothache, throat swelling, pain, etc., can be appropriate to eat a small amount.