Ways of IVF birth
Test tube baby is a kind of assisted reproduction technology, which is mainly applicable to couples with fertility disorders or infertility. In vitro fertilization embryo transfer (IVF-ET) and embryo implantation (ET) are the main methods of IVF.
In vitro fertilization embryo transfer technology
In vitro fertilization embryo transfer is one of the most common methods of IVF. First, after ovulation induction treatment, women stimulate the ovary to produce multiple follicles and promote follicle maturation, and then use a slender needle to puncture the ovary to remove the eggs. Next, in the laboratory, sperm and eggs are fertilized in vitro and cultured into embryos. Finally, the doctor will transfer the appropriate embryo back to the female uterus. After the pregnancy is successful, the test tube baby can be born.
IVF-ET technology has a certain success rate, but there are also some risks and side effects. Women may have side effects such as ovarian hyperstimulation syndrome during ovulation induction therapy. At the same time, multiple embryo transfer may increase the risk of multiple pregnancies.
Embryo implantation technology
Embryo implantation is another way of IVF and a variant of IVF - ET technology. This technology is to select one or several embryos with the best quality for implantation after multiple embryos are cultivated in the laboratory, and other embryos are frozen. Compared with in vitro fertilization embryo transfer technology, embryo implantation technology is more accurate and effective, reducing the risk of multiple pregnancy.
Embryo implantation technology also has a certain success rate, but there are also some risks and side effects. Among them, the selection of embryos plays an important role in the success of pregnancy, and the selection of poor quality embryos for implantation may lead to pregnancy failure.
Methods of realizing IVF
In addition to the above mentioned IVF-ET technology and embryo implantation technology, there are other ways to achieve IVF.
Testicular ejaculation
For men who cannot ovulate naturally, sperm can be obtained by testicular sperm extraction. Doctors use local anesthesia or general anesthesia to pierce the testes through a slender needle, extract sperm for in vitro fertilization, and carry out embryo transfer technology or embryo implantation technology for pregnancy.
Ovum retrieval from ovary
For women who cannot ovulate normally, they can obtain eggs by taking eggs from the ovary. Doctors use local anesthesia or general anesthesia to puncture the ovary through a slender needle, take out eggs for in vitro fertilization, and carry out embryo transfer technology or embryo implantation technology for pregnancy.
Transfer other people's embryos
Some couples are unable to produce embryos naturally due to chromosome abnormalities or infertility, so they can choose to accept embryos donated by others for transplantation. This way can help infertile couples realize their desire for IVF.
Summary
It can be seen from the above that IVF mainly has in vitro fertilization embryo transfer technology and embryo implantation technology. In vitro fertilization embryo transfer technology is the most common way, and embryo implantation technology is more accurate and effective. In addition, testicular sperm collection, ovarian egg collection and transfer of other people's embryos are also ways to achieve IVF. No matter what method is used, the development of IVF technology has brought a glimmer of hope for infertile couples.
