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At how many implantation failures do I know when it's time to resort to egg donation?

By Carmen Ochoa Marieta M.D., Ph.D., M.Sc. (gynecologist).
Last Update: 08/28/2018

We speak of repeated implantation failure when pregnany has not occured after having transferred 10 or more embryos of good quality throughourt assisted reproductive treatments carried out by the patient, or when 3 or more embryo transfers have been carried out with embryos of good quality.

It takes two for implantation, the embryo and the endometrium. So it would be appropriate to assess both.

 Carmen Ochoa Marieta
Carmen Ochoa Marieta
M.D., Ph.D., M.Sc.
Gynecologist
Bachelor's Degree in Medicine from the Basque Country University. PhD in Medicine & Surgery from the University of Murcia. Currently, she is the director of the Assisted Reproduction Unit of Centro de Estudios para la Reproducción (CER SANTANDER) in Santander, Spain, as well as the director of the Diagnostic Unit of Human Assisted Reproduction in Bilbao.
License: 484805626
Gynecologist. Bachelor's Degree in Medicine from the Basque Country University. PhD in Medicine & Surgery from the University of Murcia. Currently, she is the director of the Assisted Reproduction Unit of Centro de Estudios para la Reproducción (CER SANTANDER) in Santander, Spain, as well as the director of the Diagnostic Unit of Human Assisted Reproduction in Bilbao. License: 484805626.