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Stage №3 - Insemination (embryo-stage)

Stage №3 - Insemination (embryo-stage)
After receiving germ cells, the most magical moment comes - fertilization of the egg and the birth of a new life.

How does fertilization occur?

  • This stage is performed in the embryological laboratory.
  • In the procedure can be used both fresh oocytes and sperm, and cryopreserved, which are thawed 1-1.5 hours before fertilization.
  • Pre-prepared spermatozoa are added to the eggs in a special environment and left for several hours for independent fertilization.
  • If there are specific indications, for example, with a significant decrease in sperm motility, the embryologist injects the best sperm into the egg (ICSI) with a thin needle under a microscope.
  • In 16-18 hours after fertilization, the fact of egg fertilization is assessed.

How are embryos grown?

  • Fertilized eggs are placed in an environment identical to those in the fallopian tubes, and transferred to an incubator, where embryos are cultured for up to 5-6 days.
  • The embryologist evaluates the development of embryos on the next day, 3 and 5 days after fertilization.
  • Prior to transfer, each embryo is assigned a quality category depending on their development by a specific day.
  • Embryos of categories AA and BB are considered the best for transfer.
  • Technical capabilities of the Reproductive Health Center “Bina” allow embryos to be cultured for up to 5-6 days, when the chances of pregnancy are maximum.
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