Embryo transfer is the transfer of embryos to the uterine cavity. This procedure does not cause inconvenience to the patient; it is painless and does not require anaesthesia. The entire procedure usually takes a few minutes and resembles a normal gynaecological examination. After manipulation, the patient needs to rest for 30 minutes, after which she can return to everyday life, avoiding physical and emotional stress.
Embryo transfer usually takes place 2 to 3 days after the oocytes are retrieved from the ovary.
If a couple has more than five embryos for the transfer on day 2 or day 3 or if a couple has a history of repeated unsuccessful transfers, it is recommended to transfer the embryo at the blastocyst stage (embryo 5 days after the puncture). This manipulation is close to natural conditions. In a natural pregnancy, the embryo travels down the fallopian tube and enters the uterus on day 5 or day 6 after fertilization. Blastocyst transfer enables the specialists to select the best quality embryos, thus increasing the chances of pregnancy.
What is Frozen embryo transfer (FET)? This is thawing of frozen embryoand further transfer - the placement of the embryo into the uterine cavity. Frozen embryo transfer is provided for the persons who still have embryos left after a treatment cycle. They may be used for another attempt if previous transfer did not have a successful result and/or if the couple wants to have more children in the future.
Frozen embryo transfer procedure is completely painless and performed without anesthesia with the help of a thin catheter, which also requires ultrasonic control. The embryos and the fluid are injected into the uterine cavity.