The difference in the price of amniocentesis may be due to the difference in the chromosomal items tested. Normally, the price of amniocentesis varies with the region, but the main influence is the number of items tested. A 1,000+ amniocentesis will only check for chromosome gains or losses. For an amniocentesis of more than 5,000, in addition to checking the number of chromosomes, it may also add chromosome karyotyping and gene microarrays. Not everyone needs to do amniocentesis test, if it is a high maternal age or pregnant women who have previously checked the chromosomal abnormality fetus may need to do amniocentesis test. You can choose the test that suits your situation under the guidance of your doctor.