301 Definition and principle of IVF technology
301 Test tube baby technology is an assisted reproductive technology, which aims to help couples who are difficult to conceive naturally or unable to conceive realize their reproductive dreams. The principle of this technology is to combine a mature female egg with a male sperm in vitro, form a fertilized egg, and then transfer it to the female uterus for development, and finally obtain a healthy baby.

301 IVF technology mainly includes the following steps:
1. Female ovulation promotion therapy: use drugs to stimulate female ovulation, so that the ovary develops and produces multiple eggs.
2. Egg collection: After the ovaries are mature, doctors use ultrasound guided fine needles to extract eggs.
3. Sperm sampling: male provides semen samples, and extracts healthy and active sperm after special treatment.
4. In vitro fertilization: put eggs and sperm in a culture dish, let them naturally combine in a specific culture medium and develop into fertilized eggs.
5. Embryo culture: The fertilized egg further develops into an embryo, and after culture, the embryo with the most development potential is selected.
6. Transfer embryo: transfer the selected embryo to the female uterus for pregnancy development.
301 Success rate of IVF technology
The success rate of IVF technology is affected by many factors, including women's age, the quality of eggs and sperm, and the experience of doctors and laboratories.
Generally speaking, young women have a higher success rate because their ovaries have relatively good function and the development potential of fertilized eggs is higher. According to the data from real hospitals, the success rate of IVF for women under 30 years old is about 40% to 60%.
However, with the increase of age, the ovarian function of women gradually declines, and the success rate will also decrease accordingly. The success rate of women over 40 years old is usually low, about 10% to 20%.
In addition, the quality of eggs and sperm will also affect the success rate. If the quality of eggs and sperm is poor, the development and implantation ability of fertilized eggs will be limited, thus reducing the success rate.
301 Advantages and precautions of IVF technology
The advantages of IVF technology include:
1. Solve the problem of infertility: IVF technology provides an opportunity for couples who cannot conceive themselves, and can help them realize their reproductive dreams.
2. Improve the fertility success rate: For some couples with fertility problems, IVF technology can improve the chances of fertility success.
3. Provide genetic disease screening: In the process of IVF technology, doctors can conduct genetic screening on fertilized eggs to avoid passing on genetic diseases to the next generation.
When performing IVF technology, the following items should also be noted:
1. Psychological preparation: IVF technology is a long process, requiring couples to be fully prepared for psychological and physiological challenges.
2. Money and time investment: IVF technology requires high costs, requiring couples to invest more money and time.
3. Regular re visit: In the process of IVF technology, couples need to go to the hospital regularly for inspection and re visit to ensure the safety and smoothness of the whole process.
summary
301 Test tube baby technology is an assisted reproductive technology, which helps couples who are difficult to conceive naturally realize their reproductive dreams by combining eggs and sperm in vitro and transferring them to women's uterus. The success rate is affected by many factors, including female age and egg and sperm quality. Although IVF technology has its advantages, couples need to be psychologically prepared and invest money and time before carrying out this technology. Regardless of the success rate, IVF technology provides hope and opportunities for infertile couples to realize their desire to have children.