Suicide is a tragic and distressing phenomenon. The problem of suicide in late life is often neglected by medical professionals, policy makers and the general public. Suicidal behavior in older adults (65 years old and over) is a major public health issue in many countries. Suicide rates are highest among the elderly.

To investigate the main factors associated with suicidal ideation, attempts and completed suicide among the elderly.

A literature review was carried out in PubMed and Scopus database.

Depression is the most relevant cause found, combined with chronic physical suffering, loss, bereavement, abandonment, loneliness, family conflicts and social exclusion. Differences in gender, ethnicity, the ageing process, social issues and cultural backgrounds are also major contributing factors. The major causal factors for attempted suicide are degenerative and chronic diseases, physical dependence and disability, physical and psychological pain, mental and neurocognitive disturbances and suffering. The issue of suicide prevention in the elderly is also addressed.

The negative effects on families, friends and communities following a suicide reinforce the urgency for a better understanding and prevention of suicide. Suicide associated with depression in the elderly can be prevented, provided the person is properly treated. Innovative strategies should improve resilience and positive aging, engage family and community support networks, reach vulnerable older adults, and promote health professionals’ knowledge on elderly suicide.