- Violent personal assaults
- Natural or human-caused disasters
- Accidents
- Military combat.
Examples of those who may experience PTSD include:
- Military troops who served in the Vietnam and Gulf wars
- Rescue workers involved in the aftermath of disasters like the terrorist attacks on New York City and Washington, D.C.
- Survivors of the Oklahoma City bombing
- Survivors of accidents, rape, physical and sexual abuse, and other crimes
- Immigrants fleeing violence in their countries
- Survivors of the 1994 California earthquake, the 1997 North and South Dakota floods, and hurricanes Hugo and Andrew
- People who witness traumatic events.
Family members of victims also can develop the disorder.
PTSD can occur in people of any age, including children and adolescents.