What is the probability of a test tube baby with twins?
With the development of modern medical technology, IVF has become the light of hope for many infertile couples. One form of twin pregnancy, dragon and phoenix, has attracted much attention. So what is the probability of the twins born in vitro? Next, we will elaborate on this issue from many aspects.
Number of embryos transferred
Embryo transfer is one of the key links in the success rate of IVF. How many embryos are selected for transfer is also one of the important factors affecting the probability of twins. Research shows that when multiple embryos are transferred, the probability of twins will be higher. A study of nearly 5000 IVF patients showed that the ratio of twins to twins could be as high as 10% among patients who transferred two embryos.
However, it should be noted that too many embryo transfers may pose certain risks to the health of pregnant women and infants. Therefore, when choosing the number of embryos to be transferred, doctors will take comprehensive consideration according to the couple's physical condition, age and other factors.
Embryo quality
Embryo quality is another important factor that affects the probability of twins born in vitro. In the process of culture, embryos have gone through several stages of development, and some of them may not develop or have poor quality for some reasons. In general, the higher the embryo grade, the better the quality, and the higher the probability of developing dragon and phoenix embryos.
To ensure that high-quality embryos are selected, doctors often use microscopes to evaluate embryos. In some advanced IVF centers, assisted technology (such as gene selection) can also be used to evaluate embryo quality, so as to improve the probability of twins.
Maternal age
Maternal age is also one of the important factors that affect the probability of twins born in vitro. Generally speaking, young women are more likely to obtain twins during IVF. This is because young women have relatively high egg quality and strong fertilization ability.
One study showed that the proportion of twins in IVF patients aged 20-30 years was high; The proportion of twins over 40 years old is relatively low. Therefore, young women have more advantages in the process of pursuing twins.
Hospital technical level
The technical level of the hospital also has a direct bearing on the probability of twins born in vitro. When choosing IVF hospitals, couples should choose medical institutions with good reputation, first-class equipment and professional teams.
At present, there are many famous IVF hospitals around the world, such as the Affiliated Hospital of Harvard University School of Medicine in the United States and London Fertility Hospital in the United Kingdom. These hospitals have the world's leading IVF technology and provide high-quality medical services, which can greatly increase the probability of twins.
Summary
The probability of twins born in vitro is affected by multiple factors. By selecting the appropriate number of embryos to be transferred, high-quality embryos, young women and professional hospitals, the probability of obtaining twins can be increased. However, it should be noted that while pursuing twins, couples should also consider their personal physical conditions and risk factors to select the most suitable IVF scheme.
