Recently, good news came from the entertainment circle-Nana gave birth to twins, a pair of lovely little princesses! What a blessing! There are indeed many stars in the entertainment circle who have twins, such as Christine, Jimmy Lin, Yuqi Zhang, Yang Wei, Song Xiaobao and so on.

Many people began to guess, what "means" did the stars use to give birth to twins so easily? Does anyone suspect that they have done IVF? Why do IVF have twins easily? Some people say that IVF can have twins at a time and two at a time. Is this correct? Shen Jie, deputy director of the Obstetrics and Gynecology Hospital affiliated to Fudan University, pointed out that IVF is to cultivate fertilized eggs in vitro and then transplant them into women to help them conceive. Twins are easy to appear because in order to improve the survival rate of embryos in vivo, 2~3 embryos will be transplanted at a time, so the probability of twins will indeed be higher. "According to regulations, at present, patients can only transplant two embryos at most. The average delivery time of a mother with triplets is about 33 weeks, and that of a mother with twins is about 35 weeks. The risk of premature birth can be imagined. " Shen Jie, deputy chief physician said.

Some people say that IVF can have twins at a time, two at a time. Deputy Chief Physician Shen Jie pointed out that in fact, the success rate of IVF is 30% every time, and considering that ovulation drugs are actually harmful to the mother, it is recommended that women who can conceive their own babies naturally.

But it is also possible for older female stars to be IVF.