What is the process of in vitro fertilization?
In vitro fertilization is distinguished into the following stages:
- Ovarian stimulation and egg production
Depending on the protocol followed, a regimen of injectable drugs is administered to the woman for a period of 10-14 days. In this way, multiple eggs (follicles) develop simultaneously. Sequential ultrasounds are conducted during this process to monitor the maturation of the follicles. Once these have sufficiently developed, ovulation is induced at a certain time point in order to schedule the retrieval of the eggs (ovum pick up).
Using a needle and an ultrasound machine, the doctor collects the eggs from the ovaries through the vagina. This is a brief, painless, and absolutely safe procedure, for which the woman receives light anesthesia. One hour after the completion of the ovum pick up, the woman returns to her daily life.
On the same day, the man provides the sperm, which will be used for the creation of embryos.
After proper preparation, embryologists mix eggs and sperm with the aim of fertilization. The next day, the number of fertilizations is evaluated and four days later, the number of embryos (blastocysts) which are about to be transferred is assessed.
After five days of monitoring, the blastocysts are placed in a special catheter and injected into the woman’s uterus. This is a straightforward procedure that does not require the administration of anesthesia. After the embryo transfer, the patient should lie down for half an hour and then she can return home. Ten to fourteen days later, a successful conception is determined with a simple pregnancy test.