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Suicidal behavior is a complicated phenomenon. There have been various approaches and theories to understand sui- cidal behavior. In this article, we reviewed various psychological theories with regard to suicidal behavior. Three major psychological approaches that we reviewed were psychoanalytic views (including classical analytic theory, object re- lation theory, interpersonal aspects and attachment theory), cognitive approaches and evolutionary psychological per- spective. We briefly introduced the characteristics and discussed the limitations of each theory. Suicidal behavior can- not be explained by a single perspective or theory, but it could be best understood by various psychological perspec- tives and theories.


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