First, risk factors along the categories of pathology, emotional states, personality traits, deficits, interpersonal vulnerability factors, stressors, and facilitators and inhibitors of suicidal behaviour are classified. The second section focuses on different pathways, based on different major dynamics, showing that there is more than one cluster of suicidal behaviour in adolescents. The section also provides examples of empirical models that try to track the interactions between the various risk factors leading to suicidal behaviour. The last section consists of a presentation of several new theoretical perspectives of self-destructive behaviour among the adolescent population. Many risk factors have been implicated in suicidal behaviour. In order to gain clarity in this web of multiple risk factors, a meaningful organization of the existing data is needed. Here, we will lean on Orbach’s (1997) taxonomy of risk factors in order to facilitate the organization of data related to suicidal behaviour among adolescents.