Test tube baby detection time
In vitro fertilization embryo transfer (IVF-ET) in assisted reproductive technology is a way to help couples who are unable to conceive naturally for various reasons to realize their reproductive dreams. In the whole process of IVF, an important link is the embryonic development. So how long is the actual detection time of IVF? Let's elaborate from several aspects.
Stage of embryonic development
The embryonic development of IVF includes the following stages: fertilized egg, two cell stage, early and middle embryo stage, blastocyst stage and embryo implantation stage. During these stages, the embryo will gradually develop into an embryo that can continue to grow in the mother's body.
It takes about 2-3 days from the fertilized egg to the two cell stage; It takes about 4-6 days from the two cell stage to the early and middle embryonic stage; It takes about 6-7 days from the early and middle embryo stage to the blastocyst stage; From blastocyst stage to embryo implantation stage, it takes about 9 to 10 days.
Detection time of embryo
Each stage of embryo development can be determined by specific detection methods. Common embryo detection methods include morphological evaluation, genetic detection and genomics technology.
Morphological evaluation is a method to check the appearance and structure of embryos, which can judge the quality and development stage of embryos. This method can be carried out in the early and middle embryonic stages of the embryo.
Genetic testing, including chromosome testing and single gene disease testing, can help screen whether there are chromosome abnormalities or specific single gene genetic diseases in embryos.
Genomics technology is a new method of embryo detection, which can assess the health status and development potential of embryos by comprehensively analyzing the genome of embryos.
Time of embryo transfer
The transfer time of embryos is determined according to the development of embryos and individual conditions. Usually, the embryo transfer is carried out at the embryo implantation stage. Before the embryo implantation stage, the doctor will decide the best transfer time according to the test results and the patient's physical condition.
The embryo transfer time is generally from the 5th to the 7th day of the embryo implantation stage. At this time, the embryo has developed into a blastocyst and has the ability to continue to grow in the uterus.
Summary
The detection time of IVF is determined according to the development of embryos and individual characteristics. The stages of embryonic development include: fertilized egg, two cell stage, early and middle embryo stage, blastocyst stage and embryo implantation stage. The methods of embryo detection mainly include morphological evaluation, genetic detection and genomics. The embryo transfer time is generally from the 5th to the 7th day of the embryo implantation stage. Through scientific testing and appropriate transplantation time selection, IVF technology can help couples who cannot conceive naturally realize their reproductive dreams.
