Historically, the study of suicide was coming through the prism of morality (theology, philosophy). Since the 19th century, suicide is studied with a scientific approach (psychiatry, sociology). Is that study nevertheless objective, and free of belief ? We have to question the scientific approach : should we see in suicide, a social problem to solve or should we analyze it as a sociological problem ? Considering for example suicidology and suicide prevention, in all their dimensions and not only in an assessment approach, can reveal values, standards, cultural factors underlying, influencing theory and practice of health care ; this can permit to observe how individuals include the questions of prevention, and break the paradoxical aporia criticism directed at prevention (inefficiency, social control) showing its role as an agent of social change.