Understanding Post-Traumatic Stress Disorder — what it is, how it develops, and how trauma-specialist therapy can help you recover.
PTSD is not a sign of weakness. It is a normal response to abnormal events — and with the right support, recovery is possible.
Content notice: This page discusses trauma, distressing experiences, and PTSD symptoms. Please read at your own pace and take breaks if needed. If you are in crisis, please contact Samaritans on 116 123 (free, 24/7).
Post-Traumatic Stress Disorder (PTSD) is a mental health condition that can develop after experiencing or witnessing a traumatic event. It occurs when the brain's natural process of making sense of and filing away difficult memories becomes disrupted — leaving those memories feeling vivid, intrusive, and unresolved.
PTSD was first formally recognised in returning war veterans, but it can affect anyone who has experienced trauma — regardless of age, background, or the type of event. In the UK, it is estimated that around 1 in 3 people who experience a traumatic event will develop PTSD.
During a traumatic event, the brain's threat response system (the amygdala) goes into overdrive. Normally, memories are processed and stored as past events. With PTSD, this processing is incomplete — meaning the brain continues to treat the memory as an ongoing threat, triggering fear and stress responses even when you are safe.
PTSD is not a character flaw or a sign that someone is unable to cope. It is a physiological response — the nervous system doing its best to protect you from what it perceived as a life-threatening situation.
PTSD and Complex PTSD (C-PTSD) are related but distinct conditions. Understanding the difference can help you find the right type of support.
A single traumatic event — such as a car accident, assault, natural disaster, or sudden bereavement.
Flashbacks, nightmares, avoidance, hypervigilance, emotional numbing.
Can develop at any age. Symptoms typically linked to a specific event or period.
Trauma-focused CBT and EMDR are highly effective. Treatment is often shorter-term.
Want to learn more about C-PTSD? We have a dedicated guide covering complex trauma in depth, including causes, symptoms, and phase-based treatment. Read our Complex Trauma & C-PTSD guide →
PTSD symptoms typically fall into four main categories. They can appear within weeks of a traumatic event, or sometimes months or even years later.
PTSD is diagnosed by a GP, psychiatrist, or psychologist based on your symptoms and how long they have been present. In the UK, diagnosis typically follows the criteria in ICD-11 (used by the NHS) or DSM-5.
Symptoms generally need to have been present for at least one month and be significantly affecting your daily life. You do not need a formal diagnosis to seek therapy — many trauma-specialist therapists will assess and treat PTSD symptoms directly.
PTSD can develop after any event that felt overwhelming, life-threatening, or deeply distressing. Not everyone who experiences trauma develops PTSD — this is influenced by a range of factors.
Several factors can influence whether PTSD develops after trauma:
Factors that increase risk:
Protective factors:
PTSD is one of the most treatable mental health conditions. Several evidence-based therapies have strong research backing, and many people recover fully with the right support.
The most widely used PTSD treatment. Helps you process traumatic memories, challenge unhelpful beliefs, and develop coping strategies.
Recommended by NICE as a first-line treatment for PTSD.
Eye Movement Desensitisation and Reprocessing. Uses bilateral stimulation (eye movements, tapping) to help the brain reprocess traumatic memories so they lose their distressing charge.
Also recommended by NICE. Highly effective, often faster-acting than CBT.
A body-focused approach that works with the physical sensations of trauma stored in the nervous system. Particularly helpful when trauma feels "stuck" in the body.
Helps you construct a coherent life narrative by integrating traumatic memories into your broader life story. Particularly effective for refugees and those with multiple traumas.
Medication (typically SSRIs such as sertraline or paroxetine) can help manage PTSD symptoms, particularly depression and anxiety. However, NICE guidelines recommend trauma-focused therapy as the primary treatment, with medication used alongside therapy or when therapy is not accessible. Always discuss medication options with your GP or psychiatrist.
While you are seeking or waiting for professional support, there are things that can help you manage PTSD day to day.
When flashbacks or intense anxiety strike, grounding techniques can help bring you back to the present. Try the 5-4-3-2-1 method: notice 5 things you can see, 4 you can touch, 3 you can hear, 2 you can smell, 1 you can taste.
Social support is one of the strongest protective factors in PTSD recovery. Staying connected with trusted people — even when it feels difficult — makes a real difference. You don't need to talk about the trauma; just being with safe people helps.
A consistent daily routine helps regulate the nervous system. Prioritising sleep — even if it's disrupted — exercise, and regular meals all support recovery. Avoid using alcohol to manage symptoms as it worsens PTSD long-term.
With appropriate treatment, the majority of people with PTSD recover significantly or fully. Recovery is not linear — there will be difficult days — but many people find that therapy not only reduces symptoms but leads to post-traumatic growth: a deeper sense of resilience, meaning, and connection than before.
If you think you may have PTSD, the most important step is to seek support. You do not need to manage this alone.
For specialist trauma-focused therapy — particularly EMDR, somatic approaches, or complex trauma treatment — a private trauma-specialist therapist can offer faster access and more tailored support. Our directory lists verified trauma-specialist practitioners across the UK.
Samaritans
116 123 (free, 24/7)
Crisis text line
Text SHOUT to 85258
NHS urgent mental health
Call 111, select option 2
Emergency
999 or A&E
Our directory connects you with verified trauma-specialist therapists who are trained in evidence-based PTSD treatments including EMDR, TF-CBT, and somatic approaches.