Non-invasive medium-risk children also need to follow the doctor’s advice for prenatal diagnosis, to rule out chromosomal diseases can be, but if clearly have a chromosomal disease when not necessarily can be. Non-invasive refers to non-invasive prenatal testing technology (NIPT), when the screening results suggest a medium risk means that the fetus has an elevated risk of chromosomal disorders, but can not be definitively diagnosed, you need to follow the doctor’s orders for amniocentesis and other prenatal diagnostic methods to clarify the diagnosis. When chromosomal disease is ruled out, the pregnancy can be continued, but if the diagnosis is clear, the pregnancy should be terminated according to the doctor’s advice. NIPT is not suitable for special cases such as possible fetal structural malformations or chromosomal abnormalities in the pregnant woman herself. Negative NIPT results can only indicate a low risk, but not a confirmed diagnosis, and it is necessary to follow the doctor’s advice to continue regular obstetric examination to rule out the possibility of fetal structural abnormalities.