There are some dangers associated with drawing cord blood during pregnancy. Cord blood extraction during pregnancy is done to check whether the fetus has any blood disorders. Normally, there are some dangers in drawing cord blood, and it is also rare to do this kind of test in general. To draw blood from the umbilical cord, it is necessary to locate the umbilical cord under the guidance of ultrasound and puncture to reach the umbilical cord to draw blood. There is a risk of bleeding and infection during the procedure. It is important to be on time for your maternity checkups during pregnancy. If there are no abnormalities in the fetus, low risk for Down’s syndrome, and no family history of some genetic diseases, communicate with your doctor to see if you need to have this test. If you need to check the umbilical cord blood, do not be too nervous, and strictly check the condition of the fetus. For specific cases, it is necessary to consult the doctor to decide and follow the doctor’s instructions.