Preimplantation Genetic Diagnosis (PGD)

We prevent babies from being born with inherited diseases.

To perform this procedure, an embryo cell must be extracted and analyzed using fluorescence in situ hybridization (FISH) or polymerase chain reaction (PCR) techniques. Through this diagnosis, 95% of chromosomal diseases can be ruled out.

PGD with embryos.

After in vitro fertilization and before transferring to the uterus, the genetic material is studied to detect specific alterations, usually when the embryos are on the third day of their development.

To analyze this genetic material, a biopsy is performed on each embryo, differentiating those that are healthy from those that present a specific genetic disorder; so that only healthy embryos are transferred to the uterus and the baby can be born healthy.

PGD with ovules.

Similar to PGD with embryos, this technique detects through a biopsy those hereditary genetic or chromosomal pathologies that are of maternal origin and are found in the ovule, before the embryo is formed.

To analyze it, a biopsy of the polar corpuscle is made, a cell that contains genetic material left over from the oocyte, before fertilization to identify those ovules that are more likely to have successful implantation and gestational progress.

When is this procedure carried out?


This procedure is performed when there is a family history of genetic or chromosomal alterations and you want to start a fertility treatment, such as In Vitro Fertilization. In our laboratories we perform this technique to study the DNA of embryos and identify those that present hereditary alterations. Before transferring the embryos to the maternal womb, this diagnosis must be made in such a way that the transmission of hereditary diseases is avoided.

Who can perform this technique?

  • Couples with a medical history of recurrent abortions.
  • Couples with risk of transmitting hereditary diseases .
  • Women over 35 years old.
  • Implementation failures after several cycles of IVF .  
  • Men with alterations in sperm meiosis.

Do you need information?

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