1. Intrusion Symptoms
These involve the unwanted re-experiencing of the traumatic event. Vivid flashbacks that feel as though the trauma is happening again in real time, disturbing nightmares, and intense emotional or physical reactions to reminders of the event are all intrusion symptoms. A specific sound, smell, location, or date can trigger overwhelming distress with little warning.
2. Avoidance Symptoms
People with PTSD often go to significant lengths to avoid anything that reminds them of the trauma – specific places, people, conversations, activities, or even certain thoughts and feelings. While avoidance provides temporary relief, it reinforces the brain’s association between those reminders and danger, which maintains and often deepens PTSD symptoms over time.