From its inception to its current maturity, IVF technology has helped thousands of families have their own children, but we all know that the success rate of IVF technology is not 100% and is affected by many factors.
Therefore, in order to improve the success rate, many patients will consider transplanting multiple embryos.
So, how many embryos are suitable for IVF transfer?
my country's "Human Assisted Reproductive Technology Specifications" clearly limits the number of embryos to be transferred. For women under the age of 35, it has been stipulated that only 1 to 2 embryos can be transferred in the first cycle.
PART 1
The more embryos transferred, the higher the success rate?
Theoretically, a large number of transplanted embryos can increase the success rate of IVF, but the quality of the embryos is the key factor in the success of the transplant, and under natural conditions, the vast majority of human pregnancies are singleton pregnancies.
"Twins, twins, ", etc. are indeed cute, but in medicine, how many babies a woman can have at one time depends on her physical condition, rather than how many embryos the patient wants to transplant. Multiple pregnancy is extremely dangerous for both the mother and the fetus.
PART 2
Dangers of multiple pregnancy
As the number of transplanted embryos increases, the incidence of multiple pregnancy will also increase. Multiple pregnancy can bring a series of complications to mother and baby.
1. Multiple pregnancy is likely to increase the risk of pregnancy complications such as gestational diabetes , gestational hypertension, anemia, uterine atony;
2. The uterus of multiple pregnancy is significantly larger than that of a single pregnancy, and the growth rate is faster, and the body With a heavy burden, pregnant women may experience symptoms such as palpitation, dyspnea, edema of the lower limbs, and varicose veins;
3. The risk of premature birth and miscarriage will also increase;
4. Multiple pregnancy will affect fetal development, and the risk of low birth weight and malformation of the newborn is higher than that of a single pregnancy.
With so many risks, some people believe that fetal reduction surgery can be a remedy for multiple pregnancies. However, after fetal reduction in multiple pregnancies, there is the possibility of affecting embryonic development, and the health risks of the baby will also increase. Multifetal reduction as a remedial measure after multiple gestations is therefore not the preferred strategy to reduce or avoid maternal and fetal risks.
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