Delayed motherhood: cryopreservation of oocytes Most men, up to the older age, retain the ability to fertilize. Yet, even when they are perfectly healthy, women, after thirty-five years, often have difficulties trying to conceive naturally. For this reason, many women are considering cryopreserving (freezing) their eggs. In the future, when motherhood becomes their top priority, this procedure increases their chances…

A possible cause of failure of implantation of the embryo in assisted reproductive technologies may be complications occurred in the opening of the embryo (hatching) from the shell. Possible cause - the zona pellucida (outer “shell” of the embryo) is thicker than normal. Laser hatching is a laboratory procedure that is designed to assist the opening of the embryo. When…

Pre-implantation genetic testing (PGT) is a way of detecting the genetic and chromosomal abnormalities in the embryo before transferring it into the uterine cavity. The use of this method allows identifying embryos with chromosomal disorders or helps to prevent transmission of inherited diseases to the child. Pre-implantation genetic testing is divided into several categories: PGT - A (Preimplantation genetic testing…

Surrogacy is one of the methods of infertility treatment in which embryos obtained during the in vitro fertilization cycle are transferred into the uterine cavity of a woman who is not genetically related to those embryos for further delivery and birth. In the cycle of surrogacy, the eggs of the genetic mother (or oocyte donor) are fertilized with the sperm…