Non invasive DNA is a prenatal test that utilizes gene sequencing, which is expensive but highly accurate, mainly used to screen for the three common chromosomal diseases such as Down syndrome. So, do test tube twins stop for non-invasive testing?

It is accurate to undergo non-invasive genetic testing for test tube twins. Currently, non-invasive genetic testing is mainly suitable for single pregnancy. Women can go to regular and professional hospitals for non-invasive testing, and check whether the test results are normal for the test tube baby. During pregnancy, it is recommended to supplement with folic acid, avoid greasy foods, eat more nutritious foods, and exercise appropriately.
The best time to do non-invasive testing is between 12 weeks and 22 weeks of pregnancy. If the pregnancy time exceeds 22 weeks and non-invasive testing is done again, the risk of testing will increase; If the gestational age is too young, the accuracy of the screening results will also be affected. The results of non-invasive prenatal testing show low risk and are not completely safe, and there may be a possibility of missed detection. For some high-risk pregnant women, further diagnosis can be carried out, and methods such as amniocentesis can be used to prevent the birth of Down syndrome infants.
If one of the test tube twins stops developing, women should regularly monitor color ultrasound and check their coagulation function, because after one stops developing, the absorption of necrotic substances can easily lead to impaired coagulation function in pregnant women. Children who have stopped developing will be expelled from the body together with healthy children at birth.