If you have a high risk of Down’s syndrome, don’t be too nervous, Down’s syndrome screening is only 65% accurate, when there is a high risk, you need to do further tests, you can do non-invasive DNA, the accuracy rate can reach 99%, you can also do amniocentesis, amniocentesis is the direct extraction of amniotic fluid, can directly determine whether the fetus has chromosomal or genetic problems. Amniocentesis is the direct extraction of amniotic fluid to determine whether the fetus has chromosomal or genetic problems. Amniocentesis is a direct test by extracting amniotic fluid, while non-invasive DNA and Down’s syndrome screening are performed by extracting the pregnant woman’s blood serum and combining it with analysis and evaluation according to the pregnant woman’s gestational week, height and weight.