Several factors can heighten the risk of developing PTSD after experiencing trauma. Those with a history of mental health issues, previous traumatic experiences, or a genetic predisposition are more susceptible. The severity and duration of the trauma, as well as the immediate availability and quality of support, are critical factors. Personal perceptions of the trauma, such as feelings of helplessness, also significantly impact the risk. Conversely, having a robust support network can reduce the likelihood of developing PTSD, while a lack of support can increase vulnerability.