Embryo Adoption

Embryo adoption is a simple and cost-effective alternative whereby an embryo that is donated by another couple helps to create a new family.

What is embryo adoption?

An embryo –which results from joining an egg and a sperm– is adopted and transferred into the adopting patient’s uterus to achieve pregnancy. This allows patients to enjoy pregnancy, delivery and parenthood.


In most cases, embryos are produced by couples who have participated in assisted reproduction programmes with their own gametes or by double donation (eggs and sperm) and, having achieved to become parents, decide to donate their embryos, which remained frozen, to other couples.

When is embryo adoption advised?

  • When patients wish to benefit from an altogether simpler reproductive treatment.
  • When other reproductive treatments fail.
  • In cases of premature ovarian failure, menopause or lack of response to ovarian stimulation.


  • When patients wish to adopt for ethical reasons but would like to enjoy pregnancy, delivery and breastfeeding.
  • It is also a viable option for women without a male partner or a same-sex partner.

An embryo –which results from joining an egg and a sperm– is adopted and transferred into the adopting patient’s uterus to achieve pregnancy. This allows patients to enjoy pregnancy, delivery and parenthood.

In most cases, embryos are produced by couples who have participated in assisted reproduction programmes with their own gametes or by double donation (eggs and sperm) and, having achieved to become parents, decide to donate their embryos, which remained frozen, to other couples.

How is embryo adoption done?

It is a procedure whereby one or two embryos are taken from our embryo repository and inserted in the patient’s uterine cavity.

There is no waiting list for embryo adoption. Because embryos are cryopreserved, the procedure only requires preparing the adopting patient’s endometrial cavity and thawing and transferring the embryos on the same day.


Getting the mother’s uterus ready for treatment is a very simple procedure. It requires oral administration of tablets or transcutaneous administration of oestrogen (i.e. patches) until transference, and subsequent administration of vaginal progesterone. Normally, a single ultrasound scan is previously needed, which effectively reduces the number of visits and the cost of the procedure. The beginning of the hormone treatment is synchronized with the patient’s menstrual cycle (natural or artificial in case of lack of menstruation), and endometrial growth (i.e. the inner layer of the uterus, where embryos are implanted) is monitored by ultrasound to calculate a due date for embryo transfer.

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