Today, thanks to advances in assisted reproduction treatments and improvements in embryo culture media, many couples undergoing assisted reproductive treatment have a high quality and a high number of embryos. Usually, only one or two of these embryos are used, and other optimal embryos are frozen.
Under Spanish law (Law 14/2006 of 26 May on assisted human reproductive technologies), the optimal quality of embryos left over from the application of IVF techniques that are not transferred to the woman in a reproductive cycle should be frozen at banks so jurisdiction. Among the possible destinations that can give these embryos, one of which is the donation for reproductive purposes to others who want children.

The embryo adoption is a treatment that most patients choose increasingly because it has many advantages:

  • There is no waiting list. It is only necessary that the embryos share some characteristics with the parents (blood type, Rh phenotype) for the embryo transfer.
  • The treatment is very simple and takes little time, you just need to prepare the endometrium and by an ultrasound we show the correct time for the transfer. The visits to the fertility clinic can be reduced significantly.
  • The cost of the treatment of the reproduction are considerably less.


  • Couples or women only those that are on the waiting list for adoption of children.
  • Couples with a serious shortage or absence of gametes.
  • Genetic abnormalities.
  • Older women.
  • Couples with repeated failures in different techniques of assisted reproduction and ivf process. Repeated assited reproduction cycles.
  • Patients with multiple miscarriages.


The treatment of donated embryo transfer includes the following phases:

Preparation of the endometrium
When the woman menstruation arrives we will begin the treatment with estrogens, with increasing doses to achieve adequate endometrial thickness, which will be assessed by vaginal ultrasound. Once grown the endometrium, the thawing of embryos and their transfer can be done. To facilitate embryo implantation progesterone will be vaginally administered.
Thawing of embryos
At VITA, we have the infrastructure and the specialized team necessary to perform embryo cryopreservation using the latest techniques (vitrification). The vitrified embryos are stored in suitable tanks containing liquid nitrogen and kept at the temperature of -196 ° C.
Devitrification is a process that involves passing a temperature of -196 ° C to body temperature of 37 ° C. In addition, the embryos are incubated with specific means, the cryoprotectants are being replaced in substances used for freezing, thereby producing cellular rehydration and embryo biological functions are reactivated.

Embryo transfer
Usually the embryos are thawed on the day of the transfer, a few hours earlier to check that they have survived to the process. The Spanish law establishes that per cycle it can not be transfered more than three embryos. The appropriate number of embryos to transfer will be determine by the patient and the specialized team.
The gynecologist will use a catheter to guide the embryos through the cervix and deposit them. The embryo transfer procedure lasts a few minutes and recovery time needed is very short.
Pregnancy test

The pregnancy test will be done trough a blood test 13 days after the follicular puncture.

If the patient has lost blood before undergoing the test it is important to never leave the medication and to contact the medical team for advice. Throughout treatment, your personal assistant will be available at all times to resolverle doubts that you may have and support you in this special moment.

Fertility clinics in Spain

Medical Team

Susana Sempere - Gynaecology

Dr. Susana Sempere Ferri

Antonio Moya - Reproductive Medicine

Dr. Antonio Moya

Eva Moreno

Dr. Eva María Moreno Ruiz

Jose Manuel Lozano - Gynaecology

Dr. Jose Manuel Lozano

Romina Ramírez - Gynaecology

Dr. Romina Ramírez Melguizo

You know what…

  • Embryo donation is absolutely legal in Spain, regardless of the nationality or origin of the patient. Every woman (either alone or as a couple) may adopt embryos. Many people from outside Spain to try it here, because the laws are stricter in their country.
  • Embryo donation is completely anonymous.
  • The degree of success in assisted reproduction with this technique is highly dependent on the quality of embryos when they are frozen. With vitrification techniques, vary the survival of the embryos of 80-90% and the pregnancy rate is higher than 35%.
  • Usually after the transfer, patients wait about an hour in the room of the fertility clinic. If your gynecologist does not indicate you need a rest after the transfer. There are no studies showing that rest increases the chance of pregnancy. Then, once home, they can perform their normal rhythm of life.

Information about Embryo Donation in Spain