Saviour babies are conceived through assisted reproductive techniques to help treat a sibling with a chronic illness, such as leukemia. They are selected through genetic screening to ensure compatibility and to confirm they are not carriers of the disease. This research paper examines two cases of saviour babies in Catalonia, focusing on the ethical considerations surrounding these eugenic techniques and their associated procedures. The objective of this work is to reflect on the bioethical conflicts that arise in these treatments.

As existing laws are unable to fully regulate this relatively new technique, bioethical conflicts can arise. The paper offers a comparison and analysis of both cases from multiple perspectives to evaluate the ethics associated to the use of saviour siblings in Catalonia.