Eating hawthorn in pregnancy may cause miscarriage, especially in early pregnancy. Hawthorn is a cold food, which can stimulate to cause contractions, and it is better not to eat it in early pregnancy. In early pregnancy, especially before the second trimester, the embryo is less stable and is susceptible to teratogenic factors, which can affect the normal development of the embryo. Occasional consumption of a small amount of hawthorn will not cause miscarriage, but a large amount of fresh hawthorn can easily stimulate contractions and may cause miscarriage. It is advisable to pay attention to a reasonable diet during pregnancy, mainly a light diet during early pregnancy, which can reduce the symptoms of pregnancy reactions, do not eat foods and drugs that are likely to cause contractions or have the function of activating blood, and pay attention to supplementing folic acid.