It is necessary for women to undergo pregnancy examinations during pregnancy in order to keep track of the situation of the pregnant woman and the fetus at all times, and to provide timely rescue in case of accidents. Sheep puncture and umbilical puncture are both types of puncture surgeries, which may sound scary. There are many doubts about sheep puncture and umbilical puncture, so which one is more accurate?
Umbilical puncture refers to umbilical cord blood puncture, while amniocentesis refers to amniocentesis. Umbilical puncture may yield more accurate results than amniocentesis, but the relative risk is also higher. As the name suggests, umbilical cord puncture is a method of extracting blood from the umbilical cord, culturing and testing it to obtain test results. Umbilical cord blood contains hematopoietic stem cells, which is the most critical part of the examination because hematopoietic stem cells carry the baby's genetic makeup, while amniocentesis only extracts amniotic fluid, so the results obtained from umbilical cord puncture will naturally be more accurate than amniocentesis.
In fact, the examination contents of amniocentesis and umbilical puncture are not much different, but generally doctors recommend doing amniocentesis first because it can be done earlier, at 17 weeks of pregnancy, and the risk is also lower. Pregnant women who have missed the optimal time for amniocentesis or are afraid of the possibility of fetal abnormalities or genetic diseases will go for umbilical cord blood puncture.
In addition to amniocentesis and umbilical cord puncture, some pregnant women also undergo Down syndrome screening, which is the most common way to diagnose Down syndrome. Amniotic amniocentesis is the most common method, but amniocentesis has a disadvantage. It is an interventional surgery, and if the surgical operation is improper, there is not only a risk of miscarriage, but also intrauterine infection.
