Definition and method of IVF
IVF refers to the method of cultivating fertilized eggs in vitro through assisted reproductive technology, and transferring embryos to the mother's uterus at an appropriate time to develop, so that couples who could not conceive naturally could have children. In vitro fertilization embryo transfer (IVF-ET) and nuclear transfer (NT) are two main methods of IVF technology.
In vitro fertilization embryo transfer refers to the combination of female eggs and male sperm to form a fertilized egg, which is then cultured in vitro. When the embryo develops to a certain stage, it is transplanted into the mother's uterus for implantation and development. This is the most commonly used IVF technology with high success rate.
Nuclear transfer is to take out the nucleus of the mother's egg, replace it with the donor's nucleus, and then conduct in vitro fertilization and embryo transfer. This method is used in some special cases, such as infertile couples or patients with certain genetic diseases need to avoid passing on to their offspring.
Risks and problems of IVF
Although IVF technology has brought good news to couples who cannot conceive naturally, it also has some risks and problems.
First, ovarian hyperstimulation may lead to ovarian hyperstimulation syndrome (OHSS), including abdominal distention, nausea, vomiting and other symptoms. In severe cases, thrombosis, ascites accumulation and other complications may occur.
Secondly, the success rate of IVF embryo transfer is relatively low. The success rate of each transfer cycle may be only about 30%. Couples may need to try many times to get pregnant successfully.
In addition, during in vitro culture, embryos may be affected by the external environment, resulting in chromosome abnormalities, early stop of development and other problems, increasing the risk of abnormal fetal formation.
The welfare and progress of IVF
Although IVF technology has some risks and problems, it also brings good news to couples who cannot conceive naturally.
First of all, IVF technology gives infertile couples hope to realize their reproductive dreams, and solves the conflicts and pressures in some families.
Secondly, IVF technology can also help patients with genetic diseases to avoid passing on genetic diseases to the next generation and ensure the health of children.
In addition, with the continuous development and improvement of assisted reproductive technology, the success rate of IVF technology is also increasing, and the chance of successful pregnancy is also greater.
The reality and prospect of IVF
Although IVF technology has certain risks and problems, it is still an important choice in the treatment of infertility.
At present, all major hospitals in China have set up reproductive medicine centers or IVF specialties, such as Beijing Union Medical College Hospital Reproductive Medicine Center, Shanghai Jiaotong University Medical College Ruijin Hospital Reproductive Medicine Center, to provide IVF technology related services.
With the progress of science and technology and the increase of people's attention to reproductive health, the IVF technology will be further improved, the risk will be reduced, and the success rate will be increased, bringing good news to more infertile couples.
summary
Although IVF technology has some risks and problems, it is of great significance in solving the problem of infertility and ensuring the health of offspring of patients with genetic diseases. With the continuous development of technology, IVF technology will bring good news to more couples and is expected to achieve better results in the future.
