Ovum Donation

Written by: Dra. Carmen Calatayud Lliso
Edited by: Top Doctors®

The need to receive donated eggs is increasingly frequent because the age to look for pregnancy has been delayed over the years. However, the aging of the ovules is not the only indication, since there are other pathologies that make it necessary as in the case of early menopause, poor oocyte quality, the presence of hereditary genetic diseases ...

In CREA we look for quality in ovodonation. We care for our donors as well as our patients. We select a donor for each recipient , to have a good number of eggs and improve the chances of success.

All the donors are studied by expanding the requirements demanded by the Law, discarding sexually transmitted diseases and assessing, up to the third generation, a history of diseases that could be transmitted to offspring. In the same way, they are screened and other genetic diseases of higher prevalence are valued. Each donor is evaluated by our Psychology Department and by the Gynecology team.

Once a donor is selected for a recipient, the cycle of both is synchronized so that ovulation is stimulated to the donor while preparing the uterus of the recipient .


The oocytes retrieved from the donor are inseminated with the semen of the recipient woman's partner. The embryos thus generated are incubated, with an exhaustive follow-up of the same. Later, they will be transferred to the uterus of the recipient woman or they will be vitrified to be used in later cycles.

The ovodonation is anonymous and the choice of the donor corresponds to the medical team. Many of our egg donors are also blood donors, which reflects their solidarity. In CREA we attach special importance to the donor's involvement in participating in this altruistic act, which is ovodonation, which is why it is customary to donate more than once.

Ovum Donation is one of the treatments that provide a better prognosis of pregnancy in assisted reproduction , because although the probability of pregnancy will also depend on the male factor and uterine receptivity, the fact that the ovules come from a young and healthy woman it makes the chances of success very high.

In CREA we want to offer quality care as well as effectiveness. We are aware of how important and difficult it can be to take the step of deciding on ovodonation. For this reason, we make available to our patients our Psychology office that provides professional support, as well as the advice and help of the entire medical and paramedical team of CREA.


*Translated with Google translator. We apologize for any imperfection

By Dra. Carmen Calatayud Lliso
Fertility Specialty

Dr. Catalaytud is one of the leading specialists in the study and treatment of infertility, a leader in techniques of egg donation and preimplantation genetic diagnosis (PGD). He has over 20 years experience in the profession, with extensive training in the subject. Throughout his career he has combined his clinical work with teaching, being a teacher in training courses organized by various public and private entities. On the other hand, he is the author of scientific articles of the specialty and has participated in national and international conferences. He is currently co-director of CREA, Medical Center of Assisted Reproduction.

*Translated with Google translator. We apologize for any imperfection

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