Key facts
- PTSD can develop after experiencing or witnessing a traumatic event, such as violence, an accident, disaster, or abuse.
- Symptoms generally fall into four groups: intrusive memories, avoidance, negative changes in mood and thinking, and heightened arousal.
- It is not a sign of weakness, and it can affect anyone, including children and military veterans.
- Trauma-focused psychotherapy is the most effective treatment, and most people improve with care.
What is PTSD?
Post-traumatic stress disorder is a mental health condition that some people develop after living through or witnessing a traumatic event. It is natural to feel afraid, on edge, or shaken after danger. For most people those reactions ease over time. When the distress persists, intensifies, or interferes with daily life for more than a month, it may be PTSD.
PTSD is a recognized medical condition with biological and psychological roots, not a character flaw or a failure to "move on." With the right treatment, the brain and body can recover.
Symptoms
Symptoms usually begin within three months of a traumatic event, though they can appear later. They tend to fall into four categories:
- Intrusive memories: unwanted, distressing memories, flashbacks, or nightmares about the event.
- Avoidance: staying away from places, people, activities, or conversations that are reminders of the trauma.
- Negative changes in mood and thinking: persistent fear, guilt, or shame, feeling detached from others, loss of interest, or trouble remembering parts of the event.
- Changes in arousal and reactivity: being easily startled, feeling tense or "on guard," irritability, difficulty sleeping, or trouble concentrating.
To meet the criteria for PTSD, symptoms last more than a month and cause significant distress or problems in daily functioning.
Causes and risk factors
PTSD is triggered by exposure to trauma, but not everyone who experiences trauma develops it. Several factors influence the risk:
- Type and severity of trauma: events that are intense, prolonged, or involve direct threat to life raise the risk.
- Personal history: earlier trauma, childhood adversity, or a history of anxiety or depression.
- Lack of support: limited support from family, friends, or community after the event.
- Biology: the way the brain and stress hormones respond to fear, which can vary from person to person.
How PTSD is treated
PTSD is treatable, and the most effective approaches are well studied. A combination of therapy and, when needed, medication often works best.
Trauma-focused psychotherapy
Therapies such as cognitive processing therapy, prolonged exposure, and eye movement desensitization and reprocessing (EMDR) help you process the trauma and reduce its hold over daily life. These are considered first-line treatments for PTSD.
Medication
Certain antidepressants, particularly SSRIs, can ease PTSD symptoms and are often used alongside therapy. Medication should always be managed by a prescriber. Learn more about antidepressants.
Self-care and support
Steady sleep, regular activity, limiting alcohol, and staying connected to people you trust all support recovery. These complement, but do not replace, professional treatment.
When to seek help
Reach out to a doctor or mental health professional if trauma-related symptoms last more than a month, return after a period of relief, or get in the way of work, relationships, or daily life. Seek help immediately if you have thoughts of harming yourself. Getting help early makes recovery easier, and effective treatment is available.
Frequently asked questions
Does PTSD only affect military veterans?
No. While PTSD is common among veterans, it can develop in anyone who experiences or witnesses trauma, including survivors of accidents, assault, abuse, disasters, or serious illness. It affects adults and children alike.
Can PTSD go away on its own?
Some stress reactions ease naturally in the weeks after a traumatic event. When symptoms persist beyond a month or worsen, treatment is usually needed. Trauma-focused therapy helps most people recover.
How soon after trauma can PTSD appear?
Symptoms often begin within three months of the event, but they can sometimes surface months or even years later. Delayed symptoms are still treatable, so it is worth talking to a professional whenever they appear.