Current life stressors
Homelessness
Hopelessness
Living alone
Mood disorders
Unemployment
Among the elderly population, the most common risk factors for suicide are (Reed 2010):
Major life changes (such as retirement)
Physical illness, especially chronic illness with no hope of recovery
Recent death of a loved one
Social isolation and loneliness
Uncontrollable pain, or fear of a prolonged illness
The most common risk factors for youth suicide are (Cole et al 2011):
Exposure to friends' or family members' suicidal behavior
Firearms in the household
Gay, lesbian, or bisexual orientation
Low self-esteem
Mental illness and substance abuse
Previous suicide attempts
Stressful life event or social problem
Other medical and psychological disorders that have been associated with suicidal ideation include (Pandya 2012):
Bipolar disorder
Borderline personality disorder