Home Fertlility Treatments PGD - Sex selection and chromosomal normality



Preimplantation genetic diagnosis (PGD) is a technique that enhances pregnancy rates in the process of in vitro fertilization (IVF). The technique permits genetic analysis of embryos derived from IVF and allows better selection of the ones for transfer into the uterus. Procedure is realized employing micromanipulation techniques on the third day post-fertilization. On this day embryos are on the 8-cell stage in which all cells are exactly equal and non-differentiated. A small biopsy is made on the external wall of the embryo and one cell is aspirated, prepared and submitted to genetic screening. The procedure is safe and causes no damage to the embryo allowing posterior normal implantation.

The advantage of this procedure is to identify which embryos are genetically normal in order to select only the best ones for transfer thus increasing pregnancy rates.

Another advantage of this procedure is knowing sex of the embryo before implantation. Some couples have the desire of having a baby boy or baby girl and with this method one can be sure that the embryos transferred are all of the specific sex they want.




Ovulation Induction

Artificial insemination

In Vitro Fertilization

Other Treatments

HLA-G

Infertility and Immunology



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