In vitro fertilization is a complex method of treatment, one of the stages of which is embryo implantation. When IVF before embryo placement, the woman undergoes necessary examinations, takes medication aimed at curing chronic infections and replenishing the hormone deficiency. Thanks to the treatment, a favorable hormonal background is created for the growth of the endometrium, which creates favorable conditions for successful pregnancy and development of embryos.
Preparation for Embryo Embedding
Before carrying out the transfer of embryos in IVF, they must be prepared. To date, there are 2 methods for preparing embryos: auxiliary hatching and pre-freezing. Hatching of embryos consists in chemical or mechanical weakening of the membranes of the fetal egg in which the embryo is located. This procedure facilitates easy exit of the fetal egg from the membrane, and then it is attached to the uterus.
Vitrification of embryos (freezing in liquid nitrogen) is the second method of preparation for transfer. The procedure consists in processing embryos with liquid nitrogen at a temperature of -196 °. At the same time, 30% of embryos do not tolerate freezing and die, others retain the ability to grow and develop and can be stored in the frozen state for several years ( cryopreservation ).
What day is embryo replanting?
Transfer of embryos with IVF is carried out in 2 stages: on days 2 and 5 or on days 3 and 5: this is decided individually in each specific case. The chosen terms are expedient for the reason that it is on the 5th day that the implantation of the fetal egg occurs with natural fertilization.
How does the embryo transfer?
The embryo embryo embryo procedure is fairly simple and painless, and takes no more than 10-15 minutes. A gynecologist under the supervision of an ultrasound examines a catheter into the uterus through the cervical canal, through which embryos are transferred. After the procedure, the woman should be in a horizontal position for an hour. You should avoid physical activity and lie more until
How many embryos are needed?
According to official data, it is optimal to inject two embryos with IVF. But if the doctor has doubts, then you can put 3 and even 4. In case several embryos get accustomed to after embryos are injected with IVF, the risk to life and pregnancy increases many times, especially since women with health problems get to IVF, sometimes unclear, which prevent them from becoming pregnant naturally. Therefore, in most such situations, doctors produce a reduction in embryos .