Violence and aggression against nurses in their professional practice has become serious problem of the contemporary clinical nursing practice. In the conditions of Slovakia database concerning the extent of this problem is insufficient. The main purpose of this study was to explore the problem of violence and aggression against nurses in Slovak conditions' context of clinical nursing practice particularly with the stress on violence against nurses perpetrated by the patients. We had used the method of questionnaire – the scales of own construction. The research sample consisted of the nurses from the clinical nursing practice of selected hospitals in Žilina region.