Could you tell me what are examples that cause ptsd?

Traumatic events: War, brutality, rape, torture, murder, catastrophic events from any cause - even natural disasters. Sometimes the sufferer is directly involved as the victim - sometimes as the perpetrator. Witnessing the event can bring on ptsd in some. I'm not sure that it's impossible for even more distant viewing to bring on ptsd symptoms i.e., videos of horror. I don't think it's gone that far yet, but...

PTSD: Any event outside the realm of normal, typical, every-day human experience. It can occur as a result of witnessing, hearing of, or viewing a event.

Violence, assault: An event outside human experience that involves usually, violence, assault or natural disaster. Examples are being physically or sexually assaulted, sexual abuse, earthquake, serious auto accident. Witnessing such an event or serious threat of it, can also be a cause.

Symptom inquiry: The doctor should inquire if the patient has been in a situation where the patient believes loss of life or catastrophic injury was imminent, and with no means of escape. Symptoms from these experiences include, hypervigilance, sleep loss, nightmares, reliving the trauma, social withdrawal, anhedonia, temper outbursts, emotional withdrawal, feelings of unfinished business, and adrenalin seeking.