In this retrospective study, determinants of unbearable suffering in hospice patients who died due to euthanasia were analyzed. The four dimensions of suffering (physical, psychological, social, and existential) were used as a framework. 28 patients (5% of all admitted patients in nine years) were included. Most patients indicated 3-5 determinants, predominantly a combination of physical (96% of patients) and existential determinants (89%). Fatigue, anorexia, and dry mouth were the most prevalent and severe symptoms. Psychological (21%) and social determinants (4%) were much less often described. The results of this study may be used to assess determinants playing a role in euthanasia requests.