"IVF technique" is equivalent to "IVF". In vitro fertilization is the completion of the fertilization process by taking the eggs and sperm out of the body, and then transferring the early embryos into the woman's uterus and conceiving them in the uterus. Babies produced by IVF technology are called IVF, which allows each embryo transferred into the womb to have only a 25% chance of pregnancy, and in order to ensure that the person receiving treatment can eventually get pregnant, it is generally necessary to transfer 4 to 6 embryos at a time, which is why the birth rate of multiple births of IVF is significantly higher than that of naturally conceived people. However, it is never advisable to have twins with IVF surgery. Currently, IVF has a highest chance of pregnancy of 30%, and the probability of having twins is less than 10%.
IVF twins may only transfer 1 to 2 more embryos at the time of embryo transfer. However, it must be known that not everyone is suitable for conceiving twins, and whether or not to conceive twins needs to be determined according to the size of the uterus and the endometrium. Because some people with small uterus and poor health are pregnant with twins, doctors may recommend reduced pregnancy, because pregnant twins may threaten the health of the mother.
That is to say, IVF is not what you want to achieve with several births, the doctor will evaluate according to your physical condition, if your uterine environment is the best to put two, then the doctor will never help you put three, because it is easy to put the number of embryos according to the physical condition, it is easy to be self-defeating.
According to hengjian overseas data survey for many years, from the actual situation, the probability of naturally conceived twins is not very large. At present, the global annual birth rate of twins and multiples has reached 20% in some countries with high birth rates. If a family has twins, it must be as happy as winning the lottery.
But multiples are more risky than singles, and this danger exists for both mother and child. Mothers with multiple births are more likely to develop pregnancy syndromes such as diabetes and hypertension during pregnancy, and the probability of postpartum bleeding is also higher, and they are also more likely to have preterm birth. Therefore, Hengjian Overseas suggests that once IVF patients find multiple pregnancies, they must follow the advice of the reproductive doctor to implement fetal reduction, more than three births must be reduced, and twins are recommended to reduce the fetus.