Susceptibility to embolism may cause venous thromboembolism in pregnant women, which can lead to adverse effects such as intrauterine growth restriction, embryonic arrest, intrauterine hypoxia in the fetus, and also susceptibility to venous embolism and pulmonary embolism in pregnant women. Thrombophilia is a pathological condition that predisposes to thrombosis and thromboembolism. The etiology of embolism is unclear. Thrombophilia increases the risk of maternal thrombosis and the risk of adverse fetal outcomes. Pregnant women with eosinophilia are prone to lower extremity venous thrombosis and pulmonary embolism. Thrombosis can cause a reduction in the rate of blood flow at the maternal-placental junction and a reduction in the ability of the placenta to supply blood and oxygen, which can lead to intrauterine growth restriction, embryonic arrest, intrauterine hypoxia, and other adverse effects on the fetus. Pregnant women should pay attention to the prenatal examination during pregnancy, actively listen to the advice of professional doctors to do a comprehensive nursing care, pay attention to more rest, at the same time should be relaxed, to avoid nervousness, anxiety, any discomfort should be timely to the hospital, the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.