How many embryos does IVF need?
IVF transfer is a kind of assisted reproduction technology. According to the first-hand information of the college entrance examination version of artificial external research, IVF is in the context of family planning reform: "IVF" refers to the process of using artificial pregnancy technology to cultivate fertilized eggs to early embryos, then transfer them to the mother's body for further development, and finally divide the pregnancy into babies. The development of this technology has given many infertile couples the opportunity to realize their reproductive dreams. So, how many embryos are needed in IVF?
Embryo acquisition and culture
In the process of IVF transfer, the acquisition of embryos is a crucial step. Generally speaking, there are two sources of embryos: one is self fertilization, that is, the combination of the female's own egg and the male's sperm; The other is to use allogeneic fertilization, that is, to combine donated eggs with sperm.
After the embryo is obtained, the doctor will culture the embryo to the early embryo stage. This process usually lasts for 3-5 days. The embryo will undergo cell division in the culture dish and develop into a mass of multiple cells. In the process of culture, doctors will observe the quality and development of embryos to select the most suitable embryos for transplantation.
According to the specific situation of each couple, multiple embryos may be needed in the process of embryo acquisition and culture. This is because not every embryo can be successfully developed and transferred, so doctors usually collect and cultivate multiple embryos in advance to increase the probability of successful transfer.
Number of embryos during transfer
In the process of IVF transfer, the actual number of embryos transferred depends on the specific conditions of the couple, generally 1-2. This is due to the fact that multiple embryo transfer may increase the risk of multiple pregnancy, which will have a certain impact on the health of both mother and embryo.
Before transplantation, the doctor will evaluate the age of the husband and wife, the quality of eggs and sperm, the history of previous transplantation and other factors, and determine the most suitable number of embryo transfers based on these information. We should not only consider increasing the probability of successful pregnancy, but also try to avoid the occurrence of multiple pregnancies.
In some special cases, such as older women or multiple IVF transfer failures, doctors may consider transferring more embryos to increase the chances of successful pregnancy. In this case, the doctor will make a careful assessment and grasp according to the specific situation.
Observation and pregnancy after embryo transfer
After embryo transfer, the doctor will conduct routine observation on the patient and conduct pregnancy test regularly. If the transfer is successful, the embryo will continue to develop in the mother and eventually give birth to a baby.
Since the success rate of IVF is not 100%, not every embryo transferred can achieve pregnancy. Even if the transplantation is successful, early abortion and other risks may occur. Therefore, in the process of IVF transplantation, both husband and wife need to have enough patience and confidence, and actively cooperate with the doctor's observation and treatment.
Summary
How many embryos are needed in IVF transfer is a problem that varies from situation to situation. During the process of embryo acquisition and culture, multiple embryos will be collected to increase the probability of successful transfer. However, the actual number of embryos transferred is generally 1-2 to avoid the risk of multiple pregnancy. The observation and pregnancy after transplantation need a period of time, and the success rate is not 100%. Both husband and wife need to be patient and confident, and actively cooperate with the doctor's treatment, in order to finally realize the dream of childbirth.
