The advancement of human reproductive technology has made it possible for parents with a child affected by a haematological disorder to select and bring into being, a prospective child who can act as a matched stem cell donor. This can be done through the use of preimplantation genetic diagnosis (PGD) coupled with human leukocyte antigen (HLA) typing (PGD-HLA typing), or HLA tying as a standalone procedure, where a healthy embryo, which is an HLA match to the existing sick sibling, is (...) chosen for implantation. The creation of such a sibling (saviour sibling) is normally taken as a last resort when there is no related or unrelated matched donor. While the conception of a saviour sibling may serve as a reliable and realistic treatment option for the ailing child, it also poses new moral questions that challenge a religiously pluralistic society such as Malaysia. The use of PGD-HLA typing may be controversial as it involves creating a life to save a life, selection of compatible human embryos and destruction of the unselected embryos. At present, there is no legal framework regulating the conception of saviour siblings. The development of ethically sound and appropriate local laws and policies should consider the views of religious communities, especially when it involves a controversial subject such as the conception of saviour siblings. This article seeks to explore the perceptions of religious scholars and representatives of the major religions professed and practised in Malaysia, namely Islam, Buddhism, Christianity and Hinduism, through qualitative interviews. (shrink)