{{Citation needed span|text=Rh factor testing is crucial to the prevention ofprevent haemolytic conditions caused by the Rh incompatibility.|date=April 2019|reason=Needs reference to sources.}} The consequence of having haemolytic conditions can be dangerous or even lethal as it may lead to multiple complications.<ref>{{cite journal | vauthors = Nadgeriev MK, Amelina OP | title = [Complications in the transfusion of RH-incompatible blood] | journal = Sovetskaia Meditsina | volume = 29 | issue = 1 | pages = 95–7 | date = January 1966 | pmid = 4964445 }}</ref> Not only does Rh factor testing determine the rhesus status of the individuals, but also indicate the necessity for further medical intervention.
=== Prevention of Rh group incompatibility in blood transfusion ===