What is a test tube baby?
In vitro twins refer to a pair of twins who are successfully conceived through in vitro fertilization (IVF) technology, one of whom is a boy, the other is a girl. In nature, the gender distribution of twins is random, but through IVF technology, doctors can select an embryo for implantation at the early stage of embryo culture, thus increasing the possibility of twins.

In the process of IVF, the doctor will take the egg from the female body and combine it with the male sperm in the laboratory to form a fertilized egg. Then, after cultivation and observation, the doctor will select one or two embryos with the most development potential to be implanted into the uterus of the woman, so as to achieve pregnancy and childbirth. In vitro twins are usually achieved by selecting a male and a female embryo during single embryo implantation.
What is the probability of a test tube baby with twins?
The probability of in vitro twins is mainly affected by the following factors.
1. Experience of hospitals and doctors
Choosing an experienced IVF specialist hospital and a senior doctor is very important for the probability of successful pregnancy and obtaining twins. The advancement of hospital equipment, technical proficiency, as well as the experience and professional ability of doctors will affect the success probability of twins.
For example, XX Hospital in Shanghai has many years of successful experience in IVF. Its equipment is advanced and the doctors are professional. Therefore, their IVF success rate is relatively high.
2. Women's age and egg quality
Women's age is one of the important factors affecting the success rate of IVF. As women grow older, the quality of their eggs will decline, which will affect pregnancy and embryo development. In the process of IVF, if the quality of female eggs is good, the probability of successful pregnancy will increase, and it is possible to obtain twins.
3. Embryo quality and selection
In the process of IVF, doctors will choose the most promising embryos to be implanted into the uterus of women. The quality and selection of embryos are crucial for successful pregnancy and obtaining twins. Doctors evaluate the quality of embryos by observing the number, shape, division and other factors of the embryo cells, and select the best embryo for implantation.
Although doctors can choose embryos with stable sex for implantation, the success rate and opportunity of sex selection still depend on the quality and quantity of embryos.
The success probability of test tube babies with twins is not high
The success probability of test tube babies with twins is not high, generally between 5% and 10%, because it involves multiple complex factors. First, IVF technology itself cannot fully predict and control the outcome of pregnancy and embryonic development. Secondly, complications such as abortion and embryo termination during pregnancy will also affect the success rate of test tube babies with twins.
In addition, the process of IVF is a journey of great physical and mental pressure for couples. Many couples may feel depressed and disappointed after failure. Therefore, in the process of selecting test tube babies, couples should keep calm and rational, understand various factors and probabilities, so as to make the most suitable decision for themselves.
summary
IVF twins are twin pregnancies achieved through in vitro fertilization technology, one of which is a boy, the other is a girl. The probability of successful realization of in vitro twins is affected by many factors, such as hospital and doctor experience, women's age and egg quality, embryo quality and selection. However, it is not possible for every couple to achieve in vitro twins, and the probability of success is between 5% and 10%. Therefore, when conducting IVF treatment, couples should be psychologically prepared and fully communicate and consult with professional doctors to make decisions suitable for them.