Non-invasive DNAplus and non-invasive DNA have some differences in testing scope and price. 1. Detection scope: Non-invasive DNA mainly adopts a new generation of DNA sequencing technology to sequence free DNA fragments in maternal peripheral plasma, and the sequencing results are analyzed for biological information, from which the genetic information of the fetus can be obtained. It can clarify whether the number of common fetal chromosomes is abnormal. Non-invasive DNA PLUS can not only screen the items of non-invasive DNA screening, in addition, it can also screen common chromosome micro-duplication and micro-deletion, and can screen more than dozens of fetal chromosome disorders at one time. 2. Price: Generally speaking, the cost of non-invasive DNA PLUS test is more expensive than non-invasive DNA, the price is different depending on the hospital, and most of the non-invasive DNA PLUS test fee will be higher than the cost of non-invasive DNA. The generation of non-invasive DNA PLUS testing technology has improved the diagnostic rate of non-invasive DNA testing for chromosomal abnormalities.