If you are having trouble dealing with an event or traumatic situation, then you may have posttraumatic stress disorder or PTSD. Frequent cases of PTSD are found in those who have served in the military, been involved in a car crash or violent crime, or have been raped or abused. It is typical to experience trauma or stress immediately following a traumatic or stressful experience, however, some find it more difficult to recover mentally from these events. When someone has PTSD, they continue to experience the trauma through dreams and flashbacks. Treatment is available to help those with PTSD.