Thromboelastography is not a mandatory test during pregnancy and is required if there is a risk of bleeding and clotting abnormalities. Thromboelastography during pregnancy can determine whether a pregnant woman has normal coagulation based on the blood clotting process, and thus consider whether abnormalities such as bleeding or thrombus formation may occur. Thromboelastography is an indicator of dynamic changes in blood coagulation. In the later stages of pregnancy, the blood is in a highly coagulated state, and thromboelastography can be used to determine whether there are blood disorders such as thrombosis, platelet abnormalities and coagulation factor deficiency diseases, and also for early coronary artery disease, coronary atherosclerotic heart disease, venous thrombosis, disseminated intravascular coagulation, nephrotic syndrome, primary thrombophilia, and primary thrombosis. Nephrotic syndrome, primary fibrinolysis and other diseases are detected. Therefore, it is important to actively improve the maternity checkups during pregnancy to monitor the growth and development of the fetus as well as the health condition of the pregnant woman to prevent fetal malformation, dysplasia and even stillbirth. In addition, during pregnancy, we should strengthen nutrition, pay attention to balanced nutrition and ensure adequate intake of vitamins and proteins. Pay attention to rest, avoid heavy physical labor or overwork, and ensure sufficient sleep to ensure the healthy development of the fetus.