The reasons why infant health is difficult to guarantee
In nest IVF is a process of transferring fertilized eggs into the uterus of pregnant women through artificial assisted reproduction technology. Although this technology has made a great breakthrough, it is still difficult to fully guarantee the health of infants. This article will elaborate on the reasons why it is difficult to guarantee the health of IVF babies from four aspects: embryo quality, embryo implantation environment, maternal health and genetic factors.

Embryonic quality
Embryo quality is one of the important factors affecting the health of infants. In the process of in nest IVF, multiple embryos will be cultivated, and only some of them with good quality can be selected to be transplanted into the mother's uterus. However, even carefully screened embryos cannot be guaranteed to be 100% perfect in quality. Sometimes, embryos may have chromosome abnormalities, gene mutations and other problems, which may affect embryonic development and infant health.
In addition, the embryo may also be affected by the external environment during the culture process, such as the composition of the culture medium, the quality of the incubator, etc. These factors may lead to poor embryonic development, thereby affecting the health of infants.
Finally, the implantation rate after embryo transfer will also affect the health of infants. Even high-quality embryos may not be able to successfully implant and develop into healthy babies. The possibility of implantation failure increases the risk that the health of IVF babies in the nest is difficult to guarantee.
Embryo implantation environment
The environment for embryo implantation is another important reason why the health of in nest IVF is difficult to guarantee. After embryo implantation, its development depends on factors such as nutrient delivery and oxygen supply in the mother. If the pregnant woman's uterine environment is poor, such as thin endometrium, poor blood circulation, etc., it may affect the development of the embryo and the health of the baby.
The process of embryo implantation itself may also have an impact on the health of embryos and infants. Factors such as operation technology and implantation position selection during implantation may have direct or indirect effects on embryonic development and infant health.
In addition, pregnancy management and pregnancy health care after embryo implantation are also crucial to the health of infants. Pregnant women with in nest test tube babies need to receive special pregnancy management, including regular prenatal examination, blood examination, drug intervention, etc. If these management measures are improper, they may also have adverse effects on the health of embryos and infants.
Physical condition of pregnant women
The health status of pregnant women is one of the important factors affecting the health of IVF in nest. The poor physical condition of pregnant women, such as serious chronic diseases, abnormal immune system, apoptosis and other problems, may have adverse effects on embryonic development and infant health.
In addition, the age of pregnant women is also an important factor. With the increase of age, the reproductive function of pregnant women gradually declines, which may lead to an increased risk of poor embryo quality, chromosomal abnormalities and other problems. Therefore, there are also differences in the risk that the health of IVF babies in nests of pregnant women of different ages is difficult to guarantee.
Pregnant women's lifestyle and eating habits during pregnancy may also affect the health of embryos and infants. For example, smoking, drinking, unhealthy diet and other behaviors of pregnant women may have adverse effects on embryonic development and infant health.
Genetic factor
Genetic factors are also an important reason why it is difficult to ensure the health of in nest IVF babies. Before embryo transfer, it is often necessary to conduct gene testing and genetic counseling, as well as analyze and evaluate the genomes of both sides. However, even after genetic counseling and evaluation, it is still impossible to completely eliminate the risk of infants suffering from genetic diseases.
In addition, the difficulty in ensuring the health of the babies born in the nest in vitro is also related to the risk of genetic mutation. In the human genome, there are a large number of variable sites, and mutations in these sites may have an impact on embryonic development and infant health. However, the current understanding of mutations in these sites is still relatively limited, so it is impossible to fully guarantee the health of the infants in the nest.
Summary:
The difficulty in ensuring the health of IVF babies in nests is mainly due to the influence of embryo quality, embryo implantation environment, maternal physical condition and genetic factors. The uncertainty of embryo quality, the adverse effects of embryo implantation environment, the limitations of pregnant women's physical conditions and the existence of genetic factors all make it impossible to truly guarantee the health of infants. Therefore, for couples preparing for IVF in nest, it is necessary to fully understand these risks and make prudent decisions under the guidance of doctors.