Requirements of IVF for embryos
As an important achievement of modern reproductive medicine, IVF technology not only provides a way of hope for couples who cannot conceive naturally, but also puts forward higher requirements for embryo selection. IVF needs to obtain a healthy and high-quality embryo in vitro culture to improve the probability of successful pregnancy. This article will elaborate on the requirements of IVF for embryos from four aspects: genetic health of embryos, embryonic development status, embryo implantation ability and embryo number.
Genetic health
The genetic health of embryos is one of the important factors for the success of IVF. Genetic diseases have an important impact on the development of embryos and the health of infants, so it is very important to select genetically healthy embryos. With the development of medical technology, IVF can carry out gene screening to detect whether the embryo carries pathogenic genes or genetic diseases. This can eliminate embryos that carry the risk of genetic diseases and improve the birth rate of healthy babies.
At the same time, some well-known hospitals at home and abroad, such as Peking Union Medical College Hospital and the Affiliated Hospital of Harvard Medical College, have introduced PGS (embryonic chromosome screening) and PGD (single gene disease screening) technologies in the technology of IVF. Through screening chromosomes and genetic diseases, we can achieve the selection of genetically healthy embryos and improve the success rate of IVF.
Embryonic development state
In addition to genetic health, the developmental status of embryos is also one of the important factors for the success of IVF. With the progress of medical technology, it is now possible to observe the subtle changes in embryonic development, such as the number, quality and morphology of embryonic cells. A healthy embryo should have a normal number of healthy cells with regular morphology and high quality.
Many studies have shown that embryo quality assessment when embryos are cultured to a specific stage of development can more accurately predict the development potential and pregnancy success rate of embryos. Therefore, when selecting embryos, doctors will select embryos with good development potential for implantation based on the evaluation results of embryo development status, so as to improve the success rate of IVF.
Embryo implantation ability
The success of IVF depends not only on the quality of the embryo, but also on the good implantation ability of the embryo. The ability of embryo implantation refers to the ability of embryo to implant safely in the uterus and continue to develop. The difference of implantation ability will affect the survival rate and pregnancy rate of embryos.
Therefore, when selecting embryos, doctors will also evaluate the implantation ability of embryos. On the one hand, the morphological structure and quality of the embryo will affect the implantation ability of the embryo, and the embryo with sufficient number of cells and regular morphology has a stronger implantation ability; On the other hand, the influence of the internal environment of the uterus is also important. The thickness and health of the mother's endometrium are of great significance to the implantation ability of the embryo.
Number of embryos
One of the keys to the success of IVF is to select a reasonable number of embryos. On the one hand, too much embryo implantation may lead to multiple pregnancies, increasing the risk of mothers and infants. Multiple pregnancy will increase the risk of premature delivery, embryonic dysplasia and other complications, and pose a greater threat to both mother and fetus. Therefore, doctors will implant an appropriate number of embryos into the uterus according to the couple's age, personal needs and embryo quality.
On the other hand, the number of embryos implanted will also affect the probability of successful pregnancy. Implantation of a reasonable number of embryos can promote each other and increase the possibility of pregnancy. Therefore, doctors will select the appropriate number of embryos for implantation according to the patient's situation to improve the success rate of IVF.
Summary
IVF requires many aspects of embryos, including genetic health, development status, implantation capacity and quantity. Genetically healthy embryos can be obtained through gene screening technology. The development status and implantation ability of embryos can be considered through embryo quality assessment. The number of embryos needs to be selected according to the actual situation of patients. Taking these requirements into account, we can improve the success rate of IVF and bring hope for couples who cannot conceive naturally.
