Individual, relationship, community and societal factors can increase the risk of suicide such as:

Previous suicide attempt(s).
A history of suicide in the family.
Substance use.
Mood disorders (depression, bipolar disorder).
Access to lethal means (for example, keeping firearms in the home or having access to unsecured prescription medications)
Losses and other events (for example, the breakup of a relationship or a death, academic failures, legal difficulties, financial difficulties).
History of trauma or abuse.
Bullying.
Chronic physical illness, including chronic pain.
Exposure to the suicidal behavior of others.
Social isolation.
Historical trauma.
Stigma associated with seeking help.