Post-Traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is an anxiety disorder that can develop after exposure to a terrifying event or ordeal in which grave physical harm occurred or was threatened. Traumatic events that may trigger PTSD include violent personal assaults, natural or human-caused disasters, accidents, or military combat.

Among those who may experience PTSD are military troops who served in Vietnam and the Gulf Wars; rescue workers involved in the aftermath of disasters like the Oklahoma City bombing; survivors of accidents, rape, physical and sexual abuse, and other crimes; immigrants fleing violence in their countries; survivors of the 1994 California earthquake, the 1997 South Dakota floods, and hurricanes Hugo and Andrew; and people who witness traumatic events. Family members of victims also can develop the disorder. PTSD can occur in people of any age, including children and adolescents.

Many people with PTSD repeatedly re-experience the ordeal in the form of flashback episodes, memories, nightmares, or frightening thoughts, especially when they are exposed to events or objects reminiscent of the trauma. Anniversaries of the event can also trigger symptoms. People with PTSD also experience emotional numbness and sleep disturbances, depression , anxiety , and irritability or outbursts of anger. Feelings of intense guilt are also common. Most people with PTSD try to avoid any reminders or thoughts of the ordeal. PTSD is diagnosed when symptoms last more than 1 month.

Physical symptoms such as headaches, gastrointestinal distress, immune system problems, dizziness, chest pain, or discomfort in other parts of the body are common in people with PTSD. Often, doctors treat these symptoms without being aware that they stem from an anxiety disorder.

Facts About PTSD

•  An estimated 5.2 million American adults ages 18 to 54, or approximately 3.6 percent of people in this age group in a given year, have PTSD.

•  About 30 percent of Vietnam veterans developed PTSD at some point after the war. The disorder also has been detected among veterans of the Persian Gulf War, with some estimates running as high as 8 percent.

•  More than twice as many women as men experience PTSD following exposure to trauma.

•  Depression, alcohol or other substance abuse, or other anxiety disorders frequently co-occur with PTSD. The likelihood of treatment success is increased when these other conditions are appropriately diagnosed and treated as well.

Treatments for PTSD

PTSD can be extremely debilitating. Fortunately, research—including studies supported by NIMH and the Department of Veterans Affairs (VA)—has led to the development of treatments to help people with PTSD.

Studies have demonstrated the efficacy of cognitive-behavioral therapy, group therapy, and exposure therapy, in which the person repeatedly re-lives the frightening experience under controlled conditions to help him or her work through the trauma. Studies also have found that several types of medication, particularly the selective serotonin reuptake inhibitors and other antidepressants, can help relieve the symptoms of PTSD. Other research shows that debriefing people very soon after a catastrophic event may reduce some of the symptoms of PTSD. A study of 12,000 schoolchildren who lived through a hurricane in Hawaii found that those who got counseling early on were doing much better 2 years later than those who did not.