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Recognizing Suicide Risk: Warning Signs and Risk Factors

A clinical reference for identifying individuals who may be at risk for suicide

DepressionInfo SheetFree ResourceLast reviewed April 2026

Recognizing Suicide Risk: Warning Signs and Risk Factors

A clinical reference for identifying individuals who may be at risk for suicide

Recognizing Suicide Risk: Warning Signs and Risk Factors

A clinical reference for identifying individuals who may be at risk for suicide

Suicide is a leading cause of death worldwide, yet it is often preventable when warning signs are recognized and appropriate intervention occurs. Risk factors are characteristics that increase vulnerability over time, while warning signs are observable behaviors or statements that indicate acute, near-term danger (Rudd et al., 2006). Clinicians, family members, educators, and peers all play a role in early identification. This reference sheet organizes current evidence on suicide risk factors and warning signs to support timely recognition and response. If you believe someone is in immediate danger, do not leave them alone. Contact 988 (Suicide and Crisis Lifeline) or emergency services immediately.

Acute Warning Signs Requiring Immediate Attention

  • Direct statements about wanting to die or kill oneself Any verbal or written expression of suicidal intent should be taken seriously, regardless of tone or perceived severity. Statements like 'I wish I were dead' or 'Everyone would be better off without me' are clinically significant and warrant direct inquiry.Example: A teenager posts on social media, 'I don't see the point anymore,' or tells a friend, 'You won't have to worry about me much longer.' Even if said casually, these statements should prompt a caring, direct conversation.
  • Seeking access to lethal means Researching, purchasing, or stockpiling firearms, medications, or other potentially lethal items. Means restriction is one of the most effective suicide prevention strategies (Yip et al., 2012; Zalsman et al., 2016).Example: A family member notices that someone who has been depressed recently purchased a firearm or has been stockpiling prescription medications.
  • Making final arrangements Giving away valued possessions, writing a will or letters, saying goodbye to loved ones in an unusual or definitive manner, or settling affairs without a clear medical or practical reason.Example: A college student unexpectedly gives his guitar to a close friend and writes heartfelt letters to family members for no apparent occasion.
  • Dramatic mood shift, especially sudden calm after prolonged distress A sudden sense of peace or resolution following a period of severe depression or agitation may indicate that a person has made a decision to act. This shift is often misinterpreted as improvement.Example: After weeks of visible anguish, a person suddenly appears relaxed and at peace. Family members feel relieved, but this abrupt shift may actually signal increased risk.
  • Severe agitation, rage, or feeling trapped Unbearable psychological pain, feeling that there is no way out, and feeling like a burden to others are central to leading theories of suicide (Joiner, 2005; Klonsky & May, 2015), and studies link feeling like a burden, together with feeling cut off from others, to suicidal thinking (Chu et al., 2017).Example: A person paces the room saying, 'I can't take this anymore. There is no way out and I'm just making everything worse for everyone.'

Psychiatric and Psychological Risk Factors

  • Previous suicide attempt A prior attempt is the single strongest predictor of future suicidal behavior. Risk is especially elevated in the first year following an attempt (Bostwick et al., 2016).Example: A client who survived a suicide attempt six months ago faces a new stressor at work. Clinicians should be aware that the history of a prior attempt places this person at elevated risk.
  • Depressive disorders and hopelessness Major depressive disorder is present in approximately 50 to 70 percent of suicide deaths. Hopelessness has been shown to predict later suicide (Beck et al., 1990), although a meta-analysis found that hopelessness and depression are weaker predictors on their own than once thought (Ribeiro et al., 2018).Example: A person with depression says, 'Nothing is ever going to get better. I've tried everything and nothing works.' This pervasive hopelessness is a critical warning sign.
  • Substance use disorders Research on alcohol shows how substance use raises suicide risk: intoxication lowers inhibitions and impairs judgment, and heavy long-term drinking can increase impulsivity and push people into social isolation (Pompili et al., 2010).Example: A man with a history of heavy drinking expresses suicidal thoughts more frequently when intoxicated, when his judgment and impulse control are significantly impaired.
  • Bipolar disorder, schizophrenia, and anxiety disorders Suicide risk is significantly elevated across many psychiatric diagnoses (Chesney et al., 2014), and after a psychiatric hospital stay it is highest in the first three months following discharge (Chung et al., 2017).Example: A person with bipolar disorder may be at heightened risk during a mixed episode, when depressed mood combines with the restless energy to act on dark thoughts.
  • Non-suicidal self-injury A history of self-harm, even without suicidal intent, raises the risk of later suicide attempts (Ribeiro et al., 2016), and theory holds that it builds the capability for lethal self-injury (Joiner, 2005; Van Orden et al., 2010).Example: A young woman who has been cutting to cope with emotional pain for several years may have developed a higher tolerance for physical pain, which can increase risk over time.

Psychosocial and Situational Risk Factors

  • Relationship instability or significant interpersonal loss Separation, divorce, death of a loved one, or intense interpersonal conflict are among the most common precipitants of suicidal crises, particularly when combined with limited social support.Example: After a sudden divorce, a man who has few close friends and no family nearby finds himself in deepening despair with no one to turn to.
  • Social isolation and perceived burdensomeness The Interpersonal Theory of Suicide (Joiner, 2005; Van Orden et al., 2010) identifies thwarted belongingness and perceived burdensomeness as two key interpersonal states that drive suicidal desire.Example: An elderly man who lives alone and rarely sees his family begins to believe he is a financial and emotional burden, thinking, 'They'd be relieved if I were gone.'
  • History of trauma or adverse childhood experiences Childhood abuse, neglect, and other adverse experiences are robustly associated with elevated lifetime suicide risk (Dube et al., 2001; Angelakis et al., 2019).Example: A woman with a history of childhood neglect and abuse carries a higher baseline vulnerability, especially when current stressors echo past experiences of helplessness.
  • Chronic health problems or traumatic brain injury Chronic pain is an independent risk factor for suicidality (Racine, 2018), and concussion, the most common form of traumatic brain injury, is linked to higher suicide risk (Fralick et al., 2019).Example: A veteran living with chronic pain from a service-related injury and a traumatic brain injury faces compounding risk factors that require careful monitoring.
  • Recent discharge from psychiatric hospitalization The period immediately following discharge from inpatient psychiatric care carries significantly elevated risk. Suicide risk is extraordinarily high in the first week and month after a psychiatric hospital stay, so transition planning and prompt follow-up contact are critical safety measures (Chung et al., 2019).Example: A patient discharged from a psychiatric unit returns to an empty apartment and missed calls from work. The first days and weeks after discharge are among the highest-risk periods.

Protective Factors That Reduce Risk

  • Strong social connections and sense of belonging Meaningful relationships with family, friends, community, or cultural groups provide emotional support and reasons for living that buffer against suicidal ideation.Example: A man going through a difficult time regularly attends his church group, where he feels valued and connected, giving him a sense of purpose during dark moments.
  • Effective coping and problem-solving skills The ability to manage distress, regulate emotions, and generate solutions during crises reduces the likelihood that suicidal thoughts will escalate to action.Example: When overwhelmed, a woman uses skills learned in therapy, such as calling a friend and going for a walk, to ride out the intensity of the moment rather than acting on harmful thoughts.
  • Access to quality mental health care Ongoing therapeutic relationships, medication management when indicated, and safety planning with a trained clinician are evidence-based protective factors.Example: A client and her therapist have developed a written safety plan that includes specific people to call and steps to take when suicidal thoughts arise.
  • Restricted access to lethal means Reducing access to firearms, medications, and other lethal means during periods of elevated risk is one of the most impactful and well-supported prevention strategies.Example: A family temporarily stores firearms with a trusted relative and locks up medications while their loved one is going through a crisis period.
  • Reasons for living and future orientation Hopefulness and confidence in coping, responsibility to children or family, and moral or religious objections to suicide (Linehan et al., 1983), along with life satisfaction (Koivumaa-Honkanen et al., 2001) and a sense of meaning in life (Costanza et al., 2019), have all been identified as factors that protect against suicidal behavior.Example: A father in crisis tells his therapist, 'I can't do that to my kids.' His sense of responsibility to his children serves as a powerful anchor during his darkest moments.

References

  • Angelakis, I., Gillespie, E. L., & Panagioti, M. (2019). Childhood maltreatment and adult suicidality: A comprehensive systematic review with meta-analysis. Psychological Medicine, 49(7), 1057-1078. https://doi.org/10.1017/s0033291718003823
  • Beck, A. T., Brown, G., Berchick, R. J., Stewart, B. L., & Steer, R. A. (1990). Relationship between hopelessness and ultimate suicide: A replication with psychiatric outpatients. American Journal of Psychiatry, 147(2), 190-195. https://doi.org/10.1176/ajp.147.2.190
  • Bostwick, J. M., Pabbati, C., Geske, J. R., & McKean, A. J. (2016). Suicide attempt as a risk factor for completed suicide: Even more lethal than we knew. American Journal of Psychiatry, 173(11), 1094-1100. https://doi.org/10.1176/appi.ajp.2016.15070854
  • Chesney, E., Goodwin, G. M., & Fazel, S. (2014). Risks of all-cause and suicide mortality in mental disorders: A meta-review. World Psychiatry, 13(2), 153-160. https://doi.org/10.1002/wps.20128
  • Chu, C., Buchman-Schmitt, J. M., Stanley, I. H., Hom, M. A., Tucker, R. P., Hagan, C. R., Rogers, M. L., Podlogar, M. C., Chiurliza, B., Ringer, F. B., Michaels, M. S., Patros, C. H. G., & Joiner, T. E. (2017). The interpersonal theory of suicide: A systematic review and meta-analysis of a decade of cross-national research. Psychological Bulletin, 143(12), 1313-1345. https://doi.org/10.1037/bul0000123
  • Chung, D. T., Ryan, C. J., Hadzi-Pavlovic, D., Singh, S. P., Stanton, C., & Large, M. M. (2017). Suicide rates after discharge from psychiatric facilities: A systematic review and meta-analysis. JAMA Psychiatry, 74(7), 694-702. https://doi.org/10.1001/jamapsychiatry.2017.1044
  • Chung, D., Hadzi-Pavlovic, D., Wang, M., Swaraj, S., Olfson, M., & Large, M. (2019). Meta-analysis of suicide rates in the first week and the first month after psychiatric hospitalisation. BMJ Open, 9(3), Article e023883. https://doi.org/10.1136/bmjopen-2018-023883
  • Costanza, A., Prelati, M., & Pompili, M. (2019). The meaning in life in suicidal patients: The presence and the search for constructs. A systematic review. Medicina, 55(8), Article 465. https://doi.org/10.3390/medicina55080465
  • Dube, S. R., Anda, R. F., Felitti, V. J., Chapman, D. P., Williamson, D. F., & Giles, W. H. (2001). Childhood abuse, household dysfunction, and the risk of attempted suicide throughout the life span: Findings from the Adverse Childhood Experiences Study. JAMA, 286(24), 3089-3096. https://doi.org/10.1001/jama.286.24.3089
  • Fralick, M., Sy, E., Hassan, A., Burke, M. J., Mostofsky, E., & Karsies, T. (2019). Association of concussion with the risk of suicide: A systematic review and meta-analysis. JAMA Neurology, 76(2), 144-151. https://doi.org/10.1001/jamaneurol.2018.3487
  • Joiner, T. E. (2005). Why people die by suicide. Harvard University Press.
  • Klonsky, E. D., & May, A. M. (2015). The three-step theory (3ST): A new theory of suicide rooted in the “ideation-to-action” framework. International Journal of Cognitive Therapy, 8(2), 114-129. https://doi.org/10.1521/ijct.2015.8.2.114
  • Koivumaa-Honkanen, H., Honkanen, R., Viinamäki, H., Heikkilä, K., Kaprio, J., & Koskenvuo, M. (2001). Life satisfaction and suicide: A 20-year follow-up study. American Journal of Psychiatry, 158(3), 433-439. https://doi.org/10.1176/appi.ajp.158.3.433
  • Linehan, M. M., Goodstein, J. L., Nielsen, S. L., & Chiles, J. A. (1983). Reasons for staying alive when you are thinking of killing yourself: The Reasons for Living Inventory. Journal of Consulting and Clinical Psychology, 51(2), 276-286. https://doi.org/10.1037/0022-006x.51.2.276
  • Pompili, M., Serafini, G., Innamorati, M., Dominici, G., Ferracuti, S., Kotzalidis, G. D., Serra, G., Girardi, P., Janiri, L., Tatarelli, R., Sher, L., & Lester, D. (2010). Suicidal behavior and alcohol abuse. International Journal of Environmental Research and Public Health, 7(4), 1392-1431. https://doi.org/10.3390/ijerph7041392
  • Racine, M. (2018). Chronic pain and suicide risk: A comprehensive review. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 87, 269-280. https://doi.org/10.1016/j.pnpbp.2017.08.020
  • Ribeiro, J. D., Franklin, J. C., Fox, K. R., Bentley, K. H., Kleiman, E. M., Chang, B. P., & Nock, M. K. (2016). Self-injurious thoughts and behaviors as risk factors for future suicide ideation, attempts, and death: A meta-analysis of longitudinal studies. Psychological Medicine, 46(2), 225-236. https://doi.org/10.1017/s0033291715001804
  • Ribeiro, J. D., Huang, X., Fox, K. R., & Franklin, J. C. (2018). Depression and hopelessness as risk factors for suicide ideation, attempts and death: Meta-analysis of longitudinal studies. British Journal of Psychiatry, 212(5), 279-286. https://doi.org/10.1192/bjp.2018.27
  • Rudd, M. D., Berman, A. L., Joiner, T. E., Nock, M. K., Silverman, M. M., Mandrusiak, M., Van Orden, K., & Witte, T. (2006). Warning signs for suicide: Theory, research, and clinical applications. Suicide and Life-Threatening Behavior, 36(3), 255-262. https://doi.org/10.1521/suli.2006.36.3.255
  • Van Orden, K. A., Witte, T. K., Cukrowicz, K. C., Braithwaite, S. R., Selby, E. A., & Joiner, T. E. (2010). The interpersonal theory of suicide. Psychological Review, 117(2), 575-600. https://doi.org/10.1037/a0018697
  • Yip, P. S. F., Caine, E., Yousuf, S., Chang, S.-S., Wu, K. C.-C., & Chen, Y.-Y. (2012). Means restriction for suicide prevention. The Lancet, 379(9834), 2393-2399. https://doi.org/10.1016/s0140-6736(12)60521-2
  • Zalsman, G., Hawton, K., Wasserman, D., van Heeringen, K., Arensman, E., Sarchiapone, M., Carli, V., Höschl, C., Barzilay, R., Balazs, J., Purebl, G., Kahn, J. P., Sáiz, P. A., Lipsicas, C. B., Bobes, J., Cozman, D., Hegerl, U., & Zohar, J. (2016). Suicide prevention strategies revisited: 10-year systematic review. The Lancet Psychiatry, 3(7), 646-659. https://doi.org/10.1016/s2215-0366(16)30030-x

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