Post-traumatic stress disorder (PTSD) is a delayed-onset and long-term mental disorder which caused by unusually threatening or catastrophic trauma. Symptoms may include re-experiencing the original trauma(s) through flashbacks or nightmares, avoidance of stimuli associated with the trauma, and increased arousal, such as difficulty falling or staying asleep, anger, and hypervigilance. Formal diagnostic criteria (both DSM-IV-TR and ICD-9) require that the symptoms last more than one month and cause significant impairment in social, occupational, or other important areas of functioning.
- About Us
- Psychological Topics