Post-traumatic stress disorder refers to an abnormal psychiatric response to a severe stressor such as trauma. Also known as delayed psychogenic reaction, it is a psychiatric disorder that results from an unusually threatening or catastrophic psychological trauma, leading to a delayed onset and long-term persistence. Most of the previous studies on ptsd have focused on traffic accidents, unemployment, divorce, robbery, rape, earthquake, war and immigration. PTSD usually appears three months after the traumatic event (prior to this time it is referred to as acute stress disorder), but may also occur with delayed onset months to years after the event. Trauma-inducing events include war, violent crime, sexual assault, serious traffic accidents, natural disasters, technological disasters, refugees, prolonged incarceration and torture, etc. Most people who develop ptsd are survivors of direct or exposure to the traumatic event ( Victims, witnesses and rescuers. The persistence of symptoms varies greatly depending on the patient’s condition. I. Characteristics Memory traces are profound. PTSD patients’ traumatic memories are easily extracted and have strong emotions and feelings, and the recurrence of memories makes it seem as if the patient has experienced the trauma all over again. Impairment of declarative and non-declarative memories, the American Psychiatric Association pointed out in 1994 that there are two types of memory impairment in PTSD: intrusive memories and blank memories. Intrusive memories are manifested by repeatedly acquiring traumatic experiences, and various things related to the traumatic event cause the patient to re-experience the pain of the trauma, and these memories are involuntarily intruded; and the intrusive memories are accompanied by symptoms of increased alertness, including nightmares, sudden panic reactions and inability to concentrate. Another type of memory impairment in PTSD is blank memory, in which the encoding of information is inhibited or the extraction function is impaired during the memory process. This is manifested in terms of symptoms such as impairment of declarative memory, memory incoherence, or selective forgetting of traumatic events. At the same time, PTSD patients’ working memory capacity is also impaired. In general, about 50% of patients recover within three months (apa, 1994), and other literature indicates that about 30% of patients recover completely, 40% of patients continue to have mild symptoms, 20% of patients have more severe symptoms, and 10% of symptoms continue to not improve or even worsen (kaplan & sodock, 1994). Previously, ptsd occurred mainly in men, mainly soldiers who experienced war, so it was called “shellshock” and later “war fatigue”. Studies now show that everyone, including children, is at risk for ptsd, and that it occurs twice as often in women as in men. Perhaps this is a manifestation of sexual or physical aggression in women. For epidemiological data in China, there are no comparatively large samples to investigate. III. Diagnosis-Three Major Cluster Disorders 1. Re-experiencing: That is, the individual will produce intrusive reenactment of the traumatic situation, and the reenactment is very clear and specific. In particular, anything in life that may be associated with trauma may cause individuals to re-experience the traumatic situation. And this experience will bring great pain to the individual and may further worsen and produce some PTSD-related co-morbidities (e.g., anxiety, fear, self-blame, disappointment, complaint, etc.); 2. Avoidance reaction: Out of the pain of re-experiencing, the individual will actively avoid some things that may trigger the traumatic experience. And this avoidance reaction may be unconscious, i.e. “forgetting”. On the one hand, this avoidance reaction is a protective mechanism for the individual; but on the other hand, it delays the recovery of PTSD-related disorders; 3. Further also manifested as insomnia, inattentiveness, etc. Intervention 1. Cognitive-emotional therapy is appropriate in the absence of negative co-morbidity; 2. EMDR (Eye Movement Desensitization Reprocessing) can be conducted for non-chronic PTSD; 3. comorbidity) is more obvious, it can be supplemented with drugs. Mainly selective 5-hydroxytryptamine reuptake inhibitor type of drugs, mainly used to relieve depression, anxiety and other co-morbidity reactions. 7, you can gradually eliminate the fear by experiencing the same thing again (it is best to restore self-confidence, gradually realize that they have the ability to overcome, and then repeat the experience) is also commonly known as “psychodrama”.