For patients in treatment, how do suicidal feelings emerge, how do we judge the seriousness of suicide threats & what do we do? The literature on suicidal thinking, suicidal threats & suicidal acts is reviewed as well as some of the accumulated statistics for adults, adolescents & children. Some treatment principles & countertransference reactions are presented. The values of the therapist & the therapist’s feelings toward death are seen as coloring the therapist’s reaction to suicidal patients.