IBS, which may lead to fetal arrest, is a pregnancy disorder with a high thrombotic risk, leading to a high number of adverse pregnancy outcomes, which may be improved with timely treatment. It is a thrombophilic disorder that causes microthrombi to develop in the placenta and vital organs of the pregnant woman, thereby affecting local blood microcirculation and increasing the risk of adverse pregnancy outcomes such as postpartum hemorrhage, recurrent miscarriage, intrauterine fetal growth restriction, and intrauterine distress. The treatment of thrombophilia is mainly based on anticoagulation therapy, such as low-dose aspirin combined with low molecular heparin anticoagulation program. However, the use of specific drugs need to be under the guidance of a professional doctor, do not judge the use of drugs in order to avoid the danger.