High blood coagulation of pregnant women has a great impact on the fetus, which may lead to fetal growth and development limitation, intrauterine hypoxia, and increase the fetal mortality rate, etc. 1. Fetal growth and development restriction: when pregnant women are in the state of high coagulation for a long time, it may affect the blood flow of the placenta, and the blood is in the state of high coagulation for a long time, which will have an effect on the growth and development of the fetus, and make the growth of the fetus restricted. 2. Fetal intrauterine hypoxia, increase fetal mortality: when the placental blood supply is seriously insufficient, it may also lead to fetal intrauterine hypoxia, and untimely treatment will increase fetal mortality. Pregnant women with high blood coagulation have a greater impact on the fetus. During pregnancy, it is important to have regular checkups to monitor the coagulation tetrameter, D-dimer, and so on. If hypercoagulability is detected, it is recommended to take anticoagulant medication as prescribed by the doctor, and at the same time, eat foods rich in vitamin C and protein in daily life. For severe cases, termination of pregnancy is recommended.