Purpose: Men have a lower uptake of genetic services than women; however, the specific needs and preferences of men at risk of genetic conditions other than hereditary breast ovarian cancer are not known. We ascertain the information preferences of men with a family history of prostate cancer. Methods: Unaffected men and their partners were administered a written questionnaire. Results: Responses were received from 280 men (response rate: 59.2%) and 174 partners (response rate: 74%). Most men (59.6%) reported having insufficient information about their risk and wanted further information about personal risk (93.2%) and risk management (93.6%). Strikingly, 56.3% preferred to receive information related only to positive outcomes. Urologists were the preferred source of information, but there was considerable interest in a multidisciplinary service approach significantly associated with the number of affected relatives (odds ratio Ļ 1.94, P Ļ½ .002). Partners' level of concern was not associated with interest in multidisciplinary services, satisfaction with information, or support received. Conclusions: Delivering services to men at risk will require a multifaceted approach by primary care providers and specialists. Challenges include meeting men's expectations in the face of uncertain medical knowledge, engaging those at high risk in multidisciplinary services, and delivering tailored information to those at lower risk. Men have a lower uptake of genetic services 1,2 and genetic testing 3 than women and may have different responses to coping with and disclosing genetic information. 3,4 Despite these differences, men's preferences for genetic service delivery have not been sought or identified. In cancer genetics particularly, the delivery of genetic services has been largely influenced by the experiences of women with, or at risk of developing, hereditary breast-ovarian cancer. 5-7 One retrospective study examined the needs of men with BRCA1 and BRCA2 mutations and found them generally satisfied with genetic counseling, but this did not ascertain preferences. It cannot be assumed that men at risk of other hereditary cancer predispositions have the same needs as men with mutations predisposing predominantly to breast cancer. Understanding men's preferences for the delivery of cancer genetic information becomes important when considering services for men with a family history of prostate cancer. These men have a risk of developing prostate cancer that increases with the number of affected relatives and a decreasing age of diagnosis. 8 -11 An autosomal dominant form (hereditary prostate cancer) has been defined, 8 and 2% to 3% of all prostate cancer cases meet these criteria, with up to one third of cases diagnosed before 60 years possibly caused by dominantly inherited mutations in susceptibility genes. 12 Nonetheless, the molecular basis of susceptibility remains unclear. 13 Currently, it is uncommon for men with a family history suggestive of hereditary prostate cancer to be seen in cancer genetics clinics. In Aus...