A literature review was carried out focussing on the main factors associated with suicide ideation, attempts, & completed suicide in elders. 52 references, published between 1980-2008, were selected & analyzed. They showed a strong relationship among suicide ideation, attempt, & completion in elderly individuals, which results from the interaction of complex physical, mental, neurobiological, & social factors. Suicide associated with depression in the elderly can be prevented provided the person is properly treated. In Brazil, it is necessary to invest in research given the persistent increase in suicide rates among aged people, especially among males. (57 refs.)