Traumatic Brain Injuries and Suicide – What Families Should Know
By Aileen Salares
March 22, 2019
Traumatic brain injuries (TBI), caused by a bump, jolt, or blow to the head and result in a disruption to normal brain functioning, are staggeringly common. The CDC (Centers for Disease Control and Prevention) reported that 2.8 million emergency department visits, hospitalizations, and deaths due to TBI occurred in one year. This is likely an underestimation as the statistics do not include those who are treated in non-hospital settings. TBIs can affect how a person thinks, acts, feels, and learns. TBIs can occur to anyone, regardless of age or health status, though statistically they happen most often to people over age 65 (primarily due to falls).

Increased risk of suicide following TBI has been suggested in past studies, but small sample sizes and other methodological limitations have made it difficult to draw firm conclusions. However, a large and well-conducted study of Denmark residents published in 2018 concluded that individuals who suffered TBI were twice as likely to take their lives than those who did not have a TBI diagnosis. The risk was highest within the first 6 months following the injury.
Separate studies have shown that psychological or mood disorders are relatively common post-TBI, with over 50% of people affected by a TBI developing depression within 3 months. Potential reasons for depression include physical changes in the brain due to the injury, the emotional response to the injury, and other factors unrelated to TBI such as genetic predisposition and personal or family history.
If your loved one has had a concussion or other TBI, be vigilant in observing their behavior. Encourage them to talk to a medical professional if you notice the emergence of depression symptoms, increased impulsivity, and/or other abrupt behavioral changes. If they are frustrated by their loss of independence, inability to do normal daily activities, or changes in mood, offer consistent and loving support until they receive the help they need.
- Find out more about suicide prevention
- Read about mood disorders
- Learn the cognitive symptoms of depression
If you or a loved one actively struggle with suicidal thoughts, call the National Suicide Prevention Lifeline at 1-800-273-8255. For immediate assistance contact your local emergency services by calling 9-1-1.
References:
- https://www.cdc.gov/traumaticbraininjury/pdf/TBI_Report_to_Congress_Epi_and_Rehab-a.pdf
- https://www.cdc.gov/traumaticbraininjury/get_the_facts.html
- https://www.biausa.org/public-affairs/public-awareness/news/cdc-reports-suicide-rates-increasing-dramatically
- https://www.washingtonpost.com/sports/2019/03/10/us-olympic-cycling-medalist-kelly-catlin-dies/?fbclid=IwAR1CCEbN15luH6T4uvgNo_9k4jo8vKiWnsxvtpgvPsnHR2GYFbu8JHIvtos&noredirect=on&utm_term=.67e2ddd37ea2
- https://www.npr.org/2019/03/11/702206945/olympic-cycling-medalist-kelly-catlin-dead-at-23?fbclid=IwAR1IbeJ-rOssBfoiYx5WwTUxPfI8-vht9G6rFdum9QxENvoh5JDtF3UzreE
- https://msktc.org/tbi/factsheets/depression-after-traumatic-brain-injury
- https://www.ncbi.nlm.nih.gov/pubmed/29190146
- Madsen, T., Erlangsen, A., Orlovska, S., Mofaddy, R., Nordentoft, M., Benros, M.E. (2018). Association between traumatic brain injury and risk of suicide. JAMA. 320(6): 580-588.