Posttraumatic stress disorder, or PTSD, is a serious potentially debilitating condition that can occur in people who have experienced or witnessed a natural disaster, serious accident, terrorist incident, sudden death of a loved one, war, violent personal assault such as rape, or other life-threatening events.

Most people who experience such events recover from them, but people with PTSD continue to be severely depressed and anxious for months or even years following the event. Learn about PTSD symptoms.

Women are twice as likely to develop posttraumatic stress disorder as men, and children can also develop it. PTSD often occurs with depression, substance abuse, or other anxiety disorders.

• Help Your Child Manage Traumatic Events

Fast Facts About PTSD

• 7.7 million Americans age 18 and older have PTSD.
• 67 percent of people exposed to mass violence have been shown to develop PTSD, a higher rate than those exposed to natural disasters or other types of traumatic events.
• People who have experienced previous traumatic events run a higher risk of developing PTSD.
• PTSD can also affect children and members of the military: Watch a video about Staff Sgt. Stacy Pearsall, a combat photographer who experienced PTSD. See how she got help.