In the RPO method, the egg cell of one of the women is fertilized with donor sperm. As is also the case with single mothers, the sperm donation is completely anonymous and confidential. The specialist selects the sperm donor considering the phenotype (race, physical constitution, hair type and hair and eye color, etc.) and the blood group compatibility. To become a sperm donor, the man must pass through an exhaustive medical exam, including the following tests:
- Analysis of the semen sample (mobility, morphology, concentration…).
- Blood and serology analyses (HIV, hepatitis, etc.).
- Exhaustive physical examination.
- Psychological evaluation.
- Test for freezing and thawing of the sample.
- Carrier testing.
In addition, a genetic study of the donor, known as Carrier Testing, is carried out. This test detects the possible genetic alterations and/or mutations in the donor. For this genetic testing to be effective, the woman who is going to provide the egg cell must also go through this carrier testing, since in this manner we can detect and hence prevent that the future baby is born with any of the more than 300 hereditary diseases that carrier testing studies. By taking all these steps, when the sperm sample arrives at the IVF laboratory of our clinic, we can guarantee that it is optimal in all respects and that it meets the highest standards of biological and genetic safety.