Non-invasive generally refers to non-invasive DNA prenatal testing, which is a prenatal test used to check whether the fetus has a chromosomal disorder, and the cost is around 1500~2000. Non-invasive DNA testing is used to understand the genetic information of the fetus by drawing venous blood from the pregnant woman, sequencing the free DNA fragments in the mother’s peripheral plasma using DNA sequencing technology, and biologically analyzing the sequenced information. It is used to test for chromosomal disorders such as trisomy 21, trisomy 18, and trisomy 13. Non-invasive DNA prenatal testing is usually done between 12 weeks and 22+6 weeks of pregnancy, and is suitable for pregnant women over 35 years of age, those with a history of chromosomal abnormalities in labor and delivery, and those who have abnormal results from early NT test or mid-term Down’s syndrome screening. The approximate cost of non-invasive DNA prenatal testing is around 1,500 to 2,000 yuan, but the specific charges vary according to the level of hospitals around the world.