Amniocentesis and microchip test refer to the same test, i.e. amniocentesis microchip test, which mainly examines the chromosomes of the fetus to determine whether the fetus has any chromosomal abnormalities. The amniocentesis microarray test is used in cases where there is an abnormal result in the Down’s syndrome screening and is a further test after the Down’s screening. It is a further test after the Down’s syndrome screening. It is performed by extracting the amniotic fluid of a pregnant woman and searching for the shed cells of the fetus to determine the chromosomal condition of the fetus, such as Down’s syndrome, etc. If there is an abnormality in the chromosomes of the fetus, the pregnant woman needs to consider terminating the pregnancy in a timely manner. When pregnant women need to carry out amniocentesis chip test, need to be carried out under the guidance of the doctor, after the examination, pay attention to keep the wound clean, to prevent infection, if the results of the examination is abnormal, should consult a doctor in time to take the next step of intervention.