How to realize IVF
IVF is a kind of assisted reproduction technology, which combines sperm and egg by in vitro fertilization technology, and then transfers the fertilized egg to the mother's uterus for successful pregnancy and delivery. The realization process of IVF will be described in detail from several aspects below. 1. In vitro fertilization
The first step of IVF is in vitro fertilization, that is, sperm taken from men and eggs taken from women are combined in the laboratory. First, women receive hormone therapy to stimulate their ovaries to produce multiple follicles. Then, under the guidance of ultrasonic technology, doctors use long and thin needles to collect eggs. At the same time, men provide a certain amount of sperm.
The egg and sperm are placed in the culture dish respectively, and professional laboratory technicians combine the sperm with the egg. The two commonly used methods of IVF are conventional IVF and microinjection. Conventional in vitro fertilization is to put the egg and sperm in the same culture dish, and the sperm will enter the egg to fertilize itself. Microinjection is to inject a sperm into the egg, which improves the success rate of fertilization.
After fertilization, the fertilized egg will continue to be cultivated in the laboratory until it reaches a certain development stage.
2. Culture of fertilized eggs
In the laboratory, the fertilized eggs will be cultured in a certain medium. The culture medium provides the necessary nutrients and suitable environment for the cells to help the fertilized eggs continue to develop. The composition of the culture medium is carefully prepared and adjusted to simulate the intrauterine environment.
The culture of fertilized eggs usually lasts for several days. During this period, laboratory technicians will regularly check the development of the fertilized eggs to assess their quality and potential. Only fertilized eggs that meet certain quality requirements will be selected for transplantation.
3. Transfer of fertilized eggs
Transfer of fertilized eggs is a key step in IVF. Before transplantation, women usually need some hormone treatment to help prepare the endometrium. Transplantation is usually carried out in women's natural or artificial cycles.
Fertilized eggs can be transferred through vagina or abdomen. Usually, doctors use long and thin tubes to send the fertilized eggs directly into the uterine cavity. This process usually does not require general anesthesia, but can be carried out under local anesthesia. After transplantation, women will continue to take some hormone drugs to help maintain pregnancy.
4. Pregnancy and childbirth
If the fertilized egg is successfully transferred, the fertilized egg will be implanted in the endometrium and develop into an embryo. After that, the embryo will begin to differentiate and grow. Over time, the success rate of IVF determines whether pregnancy will occur.
Once pregnancy occurs, women will undergo routine prenatal examination and care. The pregnancy time of IVF is the same as that of normal pregnancy. At the end of pregnancy, women will go through the process of natural delivery or caesarean section and give birth to test tube babies.
Summary
The realization process of IVF includes in vitro fertilization, culture of fertilized eggs, transfer of fertilized eggs, pregnancy and delivery. Through in vitro fertilization, male sperm and female eggs are combined in the laboratory. The fertilized eggs are cultured in the culture medium until they reach a certain development stage. The fertilized eggs are transferred into the uterine cavity through vaginal or abdominal operation. If the fertilized egg is successfully implanted and develops into an embryo, pregnancy will occur, and eventually the IVF will be born through natural childbirth or caesarean section. The development of IVF technology has solved the fertility problem for couples who cannot conceive naturally, bringing them hope for new life.
