Patient's question:
。Doctor, hello: Is painful? Is there any risk?Doctor's answer:
Hello,，、，。。，，。。Chorionic villus sampling (CVS) refers to a puncture procedure under ultrasound guidance to obtain chorionic villus tissue from the placenta for cell culture, molecular genetics, or biochemical genetics testing, as well as for chromosomal or genetic diagnosis. It is divided into transabdominal CVS and transcervical CVS. CVS is a mature prenatal diagnostic method that has been successfully applied to diagnose fetal chromosomal abnormalities and various genetic single-gene diseases in the early pregnancy, with broad clinical application prospects. It causes minimal pain.