Donating BM or peripheral stem cells is a challenging process that requires a considerable commitment on the part of the donating individual, especially when there is a relationship between donor and recipient. In order to develop a better understanding of related donor management, the research subcommittee of the European Group for Blood and Marrow Transplantation-Nurses Group (EBMT-NG) designed a questionnaire to survey European transplant centres. This questionnaire investigated several key areas, including guidelines, patient information, donor consent and follow-up services. It was distributed to a sample of delegates (N=150) at the 2005 meeting of the EBMT-NG. Guidelines for the information given to patients were primarily from local (33, 52%), and a combination of local and national (13, 21%) sources. Transplant information was predominantly given to related donors by the recipient's transplant team (36, 57%). A total of 33 (52%) centres indicated that donors were also consented by transplant doctors, whereas 16 (25%) identified that consent was obtained by doctors who were not connected with the transplant team. At present, there is a lack of recognized standardized guidelines for the management of related donors. The development of such guidelines would assist in maintaining patient autonomy, confidentiality and access to accurate and objective information.