Aspirin enteric-coated tablets taken by pregnant women may cause fetal malformations. Aspirin enteric-coated tablets are a relatively commonly used antiplatelet coagulant drug. Taking aspirin enteric-coated tablets in the first trimester of early pregnancy may result in fetal cleft lip and palate, underdevelopment of the central nervous system or internal organs, and neural tube malformations. Heavy use of aspirin enteric-coated tablets in the first trimester of labor may cause constriction or early atresia of the fetal ductus arteriosus. However, pregnant women can take aspirin enteric-coated tablets if there are indications for its use. 1. Antiphospholipid syndrome, if the pregnant woman is diagnosed with antiphospholipid syndrome, she can use aspirin enteric-coated tablets. 2. There are adverse pregnancies and births, such as previous severe preeclampsia combined with intrauterine fetal growth retardation, aspirin can also be used. Those who take aspirin for a long time should go to the hospital for regular checkups and adjust the dosage or stop the drug according to the specific situation.