Complex PTSD
When the hurt went on for a long time, healing can take time too. What you learned in order to survive can slowly be unlearned, at your pace.
What is complex PTSD?
When trauma was repeated or went on for a long time.
Complex PTSD (sometimes written CPTSD) can develop after trauma that happened over and over, or lasted a long time, often when escaping was impossible or dangerous. Examples include long-term abuse or neglect in childhood, ongoing domestic abuse, trafficking, war, or living with constant violence.
It includes many of the same experiences as PTSD, like flashbacks, avoidance and feeling on guard. But it often goes deeper, affecting how a person handles feelings, sees themselves, and relates to others.
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People with complex trauma may react very strongly to painful feelings, with anger or overwhelming distress that is hard to calm. Others swing the other way and feel numb or disconnected from themselves.
This makes sense: when you grew up or lived for years without safety, you never got the chance to learn how to calm down with someone else’s help. Those skills can still be learned later.
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Long-term trauma often leaves people believing something is wrong with them. They may feel ashamed, guilty, or like a failure, even when they have done nothing wrong.
A therapist at Cleveland Clinic explains that childhood trauma often shows up in adulthood as a profound sense of shame and guilt. Those feelings were learned in a harmful place. They are not the truth about who you are.
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When the people who hurt you were also the people you depended on, closeness can feel dangerous. People with complex trauma may find it very hard to build and keep close relationships.
Some people keep others at arm’s length. Others hold on tight, fearing they will be left. Both are ways of trying to stay safe.
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Complex PTSD is recognized by the World Health Organization, but not every diagnostic system lists it separately. That debate is about labels. It does not change how real and heavy these experiences are.
Therapy for complex trauma usually starts gently, by building a safe, trusting relationship and coping skills before working with painful memories, always at your pace.
PTSD or complex PTSD?
How the two are alike, how they differ, and why the label matters less than the care.
PTSD and complex PTSD share the same core experiences: memories that push in, avoiding reminders, and feeling constantly on guard. Complex PTSD adds deeper, longer-lasting struggles with emotions, self-worth and relationships.
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Cleveland Clinic explains that complex PTSD includes PTSD experiences like flashbacks, avoidance, hypervigilance, and frequent negative thoughts and feelings.
The PTSD guide describes these experiences in more depth, along with sleep problems and how they affect daily life.
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Three extra areas
- Emotions: reacting very strongly to painful feelings, or shutting down
- Relationships: great difficulty forming and keeping close relationships
- Sense of self: lasting feelings of shame, guilt, failure or worthlessness
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A 2019 national study of U.S. adults found that trauma building up over childhood was more strongly linked to complex PTSD than to PTSD. Physical and sexual abuse by caregivers was linked to complex PTSD.
The same study found that people with complex PTSD carried a heavier load of distress and lower wellbeing than people with PTSD. That is a reason to reach out for care, not a reason to lose hope.
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Complex PTSD has been part of the World Health Organization’s ICD-11 since 2019. The American Psychiatric Association’s DSM-5, which is widely used in the U.S., does not recognize it as a separate condition.
Because it is newly recognized, Cleveland Clinic notes that a provider might diagnose PTSD instead of complex PTSD. There is no test for it: a provider looks at your experiences, history and what you went through.
Childhood trauma and ACEs
Hard childhood experiences can echo into adulthood, but they are not destiny.
Adverse Childhood Experiences, or ACEs, are potentially traumatic things that happen between birth and age 17. The CDC includes experiencing violence, abuse or neglect, witnessing violence at home or in the community, and losing a family member to suicide.
ACEs also include growing up in a home with substance use problems, mental health problems, parental separation, or a family member in jail or prison. Not having enough food, or being without a stable home, can be ACEs too.
ACEs are very common. In a CDC study of U.S. adults (2011–2020), 63.9% reported at least one ACE, and 17.3% reported four or more. The most common were emotional abuse, parents separating or divorcing, and living with someone who misused substances.
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Many clinicians use a list of ten experiences. Each one counts as a point, making up an “ACE score”. It is a way of understanding risk, not a label or a grade on your life.
The ten ACEs
- Emotional abuse: being insulted, humiliated or threatened
- Physical abuse: being hit, pushed or hurt
- Sexual abuse
- Emotional neglect: feeling unsupported or ignored
- Physical neglect: lacking food, clothing or medical care
- Seeing violence between adults at home
- Living with someone who misused alcohol or drugs
- Living with someone with a mental illness or who attempted suicide
- Losing a parent through separation, divorce or abandonment
- Living with someone who went to jail or prison
The list leaves out many hard experiences, like racism and discrimination, bullying, community violence, poverty, or serious illness. These can affect children deeply too.
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When a child lives with ongoing stress, their stress hormones stay switched on. This “toxic stress” can affect how the brain grows, especially the areas for memory, thinking and emotions.
Adults who had many ACEs are more likely to live with anxiety, depression, PTSD, sleep problems, substance use, and long-term health conditions like heart disease. The CDC estimates that preventing ACEs could reduce adult depression by as much as 78% and adult heart disease by 22%.
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Protective factors are things that lower the risk of harm, or help children cope when hard things happen. The single most powerful one is safe, stable, nurturing relationships.
What the CDC lists as protective
- Families with safe, stable and nurturing relationships
- Positive friendships and peer groups
- Caring adults outside the family, like mentors, coaches or teachers
- Families who work through conflict peacefully and help children solve problems
- Families who have fun, positive times together
- Communities where people feel connected and violence is not accepted
- Access to safe housing, childcare, after-school programs, and health and mental health care
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Researchers have also studied “positive childhood experiences”: things like feeling able to talk to family about feelings, feeling family stood by you in hard times, enjoying community traditions, feeling you belonged at school, and having adults who genuinely cared.
In a 2019 study of adults in Wisconsin, those who had 6–7 of these experiences had 72% lower odds of depression or poor mental health than those who had 0–2, even after taking ACEs into account. The study shows a link, not proof of cause, but the message is hopeful.
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Knowing about ACEs can be eye-opening, and sometimes painful. But risk is not the same as fate. Many people with high ACE scores go on to live full, connected and healthy lives.
Healing is possible, even if it takes time. Good sleep, healthy food, movement, time in nature, mindfulness, supportive people and talk therapy can all help the body and mind recover from long-term stress.
Emotional neglect and attachment trauma
Sometimes trauma is about what was missing, not what happened.
Not all trauma comes from something loud or violent. Some comes from what a child needed and didn’t get: comfort, attention, safety, or someone who noticed how they felt. These wounds are harder to see, so people often don’t realize they have them.
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Emotional neglect is one of the ten ACEs. It means feeling unsupported or ignored as a child. There may have been food on the table and a roof overhead, but no one asked how you were, comforted you when you cried, or noticed when you were struggling.
Because nothing “happened”, people often say “I had a fine childhood” and then wonder why they feel empty or alone. It is the absence of something, so it can be hard to name.
How it can show up later
- Not knowing what you feel, or feeling numb
- Finding it hard to ask for help or believe anyone would want to help
- Feeling like your needs are “too much”
- Being very independent, but lonely
- Being harsh on yourself and kind to everyone else
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Attachment is the bond a baby forms with the people who care for them. When a caregiver responds reliably, the child learns that the world is safe and people can be trusted. This is called secure attachment.
When care felt unsafe or unpredictable
- Anxious attachment: often linked to care that was sometimes warm and sometimes not. Later: fear of being left, needing reassurance
- Avoidant attachment: often linked to little emotional support. Later: strong independence, discomfort with closeness
- Disorganized attachment: often linked to abuse, trauma or neglect. Later: wanting love but fearing it, pulling close then pushing away
Attachment trauma can also happen later in life, for example after a deep betrayal. And you may feel more secure with some people than with others.
The hopeful part: attachment styles can change. It starts with noticing your patterns, then slowly reshaping them, often with the help of a therapist and safe relationships.
The Attachment, love & intimacy guide explores attachment styles and moving toward security.
Family patterns that pass down
How pain can pass through families, and how cycles can be broken.
Intergenerational (or generational) trauma is when the effects of a painful experience that was never healed get passed down to children and grandchildren. Cleveland Clinic calls it “invisible family baggage”: you can’t see it, but you can feel its weight.
It can start with war, violence, abuse, poverty, displacement, addiction, or a family losing everything. The people who carry it today did not cause it. And families pass on good things too: love, traditions, courage and strength.
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Parents and caregivers are a child’s first teachers. If conflict at home was handled with aggression, or nobody talked about feelings, a child may grow up thinking that is how families work.
These patterns can shape who we choose as partners and how we parent, often without us noticing. That is how cycles keep going.
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Cleveland Clinic shares an example: a grandfather lost his home to a tornado, his child hid in the basement whenever it rained, and the grandchild now feels anxious every time there is a storm forecast, even though they never saw storm damage themselves.
Fears, rules and “we don’t talk about that” can be handed down without anyone explaining where they came from.
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Steps toward a new pattern
- Notice the pattern: “In my family, we…”
- Name where it may have come from, without blaming yourself
- Choose one thing you want to keep, and one you want to change
- Find support: trusted people, books, a therapist, or a support group
- Practise the new way, and expect to slip sometimes. That’s normal.
Trauma-informed therapy, including CBT, can help people accept their family story, notice its effects, and build healthier habits and thought patterns. Change takes time, because these responses are deeply held.
Therapy for complex PTSD
Talk therapy is the main treatment. It usually starts with safety and goes at your pace.
Cleveland Clinic describes talk therapy (psychotherapy) as the main treatment for complex PTSD. Therapy for complex trauma usually starts gently, by building a safe, trusting relationship and coping skills before working with painful memories.
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Cleveland Clinic calls building a safe relationship with a therapist “the most important step” before opening up. For people whose trust was broken again and again, this can take time, and that is okay.
Early sessions often focus on
- Getting to know your therapist and how sessions work
- Grounding and calming skills you can use anywhere
- Naming feelings and noticing body signals
- Setting the pace together, including what not to talk about yet
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Cleveland Clinic names trauma-focused cognitive behavioural therapy as a main form of therapy for complex PTSD. It covers how the body responds to stress, managing symptoms, reframing painful thinking, and gradually facing avoided situations.
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CPT focuses on distressing thoughts and feelings that developed after the trauma, like “I’m worthless” or “It was my fault.” You learn to look at them more fairly.
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In EMDR, you focus on sounds or movements while thinking about the traumatic event, so it becomes less upsetting over time. Cleveland Clinic lists it as a treatment for complex PTSD.
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Talk therapy can happen in groups as well as one-to-one. Peer support, from people with lived experience, is one of the six principles of trauma-informed care.
Hearing someone else describe what you felt for years can be a powerful “I’m not the only one” moment.
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Cleveland Clinic notes that symptoms usually improve gradually rather than all at once. For many people, complex PTSD is something they learn to manage over time, and therapy helps with that.
Daily life with complex PTSD, in short
Small skills for big feelings, a harsh inner voice, boundaries and trust. Tap any card.
Long-lasting trauma often teaches survival skills that made sense back then: staying quiet, pleasing others, switching off feelings, or expecting the worst. Day to day, you can slowly practise new skills alongside therapy.
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Researchers describe how long-lasting trauma can leave the nervous system easily pushed out of the “window of tolerance”, the calm-enough zone where you can think and cope. Healing aims to widen that window.
A quick check
- Name it: “I’m flooding” or “I’m shutting down.”
- If too high: slow your breathing, make the out-breath longer, press your feet into the floor.
- If too low: move, splash cool water on your face, name five things you can see.
- Remind yourself: “That was then. This is now.”
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Lasting feelings of shame, guilt, failure and worthlessness are a core part of complex PTSD. A therapist at Cleveland Clinic explains that childhood trauma often shows up in adulthood as a profound sense of shame and guilt.
Ways to talk back, gently
- Ask: “Would I say this to a friend who went through what I did?”
- Notice whose voice it sounds like. It may be an old voice, not yours
- Swap “I am bad” for “Something bad happened to me”
- Write down one kind, true thing about yourself each day
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People who grew up with an unpredictable or harmful adult often learned the “fawn” response: keeping the peace by pleasing, agreeing and putting others first. As adults, saying no or knowing what they want can feel very hard.
Starting small
- Choose where to eat, or what to watch
- Say “Let me get back to you” instead of an instant yes
- Leave a conversation that feels unkind
- Notice how your body feels after a small no. Often the fear passes
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When the people who hurt you were also the people you depended on, closeness can feel dangerous. Some people keep others at arm’s length; others hold on tight, fearing they will be left. Both are ways of trying to stay safe.
Attachment patterns can change. It starts with noticing your patterns, then slowly reshaping them, often with a therapist and safe relationships. The Attachment, love & intimacy guide goes deeper.
Read more
Some people with complex trauma swing between big emotions and feeling numb or disconnected from themselves. This shutting down is the mind protecting you when things are too much.
Grounding, like naming what you can see and feeling your feet on the floor, brings you back to now. The Dissociation guide and the Healing from trauma guide have step-by-step grounding skills.
Supporting someone with complex trauma
Steadiness, belief and patience matter more than having the right words.
For someone whose trust was broken again and again, a steady, safe person can make a real difference. You don’t need to be an expert. Believing them, staying calm and letting them lead are some of the most helpful things you can offer.
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A 2019 review found that negative reactions when survivors disclosed violence, like blaming them, trying to take control or treating them differently, were linked to worse mental health. Calm belief helps.
Things that help to say
- “I believe you.”
- “It wasn’t your fault.”
- “You don’t have to tell me anything you don’t want to.”
- “What would help right now?”
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People with complex PTSD often find it very hard to build and keep close relationships. Reliability helps: turning up when you say you will, keeping confidences, and staying calm when things get tense.
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Early trauma can lead to wanting love but fearing it, pulling close and then pushing away. It is a way of trying to stay safe, learned long ago.
Keep the door open with low-pressure invitations, and let them know you’re still there.
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“Empowerment, voice and choice” is one of the six principles of trauma-informed care. When control was taken away for a long time, being asked what you want can be healing.
Small ways to offer choice
- “Would you rather talk or just sit together?”
- “Do you want me to come with you, or wait outside?”
- “Is it okay if I hug you?”
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Supporting someone with trauma can be draining. You can’t fix another person, and change may be slow. Keep up your own friendships, interests and rest, and consider support or therapy of your own.
By the numbers
How common complex PTSD and childhood adversity are. You are far from alone.
Complex PTSD
Childhood adversity
Hope
When and where to get help
It is never too late to get support, whenever the hurt happened.
It’s a good idea to reach out to a doctor, counselor or therapist if what happened to you is getting in the way of your relationships, work, sleep or sense of who you are. Many people wait years. Whenever you reach out, it counts.
Reach out if you notice…
- Feelings that swing very high or shut off completely, and are hard to calm
- Flashbacks, nightmares or memories that keep pushing in
- Pulling away from people, or relationships that keep feeling unsafe
- Strong, lasting shame, guilt or feeling worthless
- Thoughts of harming yourself
- Using alcohol, substances or risky behaviour to cope
Where to start
- Talk to your primary care provider. They can refer you to a trauma-informed therapist.
- Ask a therapist: “Do you have experience with complex or childhood trauma?” and “Can we go at my pace?”
- Domestic violence: National Domestic Violence Hotline, 800-799-SAFE (7233), free and 24/7.
- Sexual abuse or assault, at any age: RAINN National Sexual Assault Hotline, 800-656-HOPE (4673), 24/7.
- The “Abuse: the basics” guide and the Safety planning & leaving guide have safety planning and more support.
📝 Worksheets for this guide
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Sources
- U.S. Department of Veterans Affairs, National Center for PTSD. Common Reactions After Trauma
- U.S. Department of Veterans Affairs, National Center for PTSD. Talk Therapy for PTSD
- U.S. Department of Veterans Affairs, National Center for PTSD. Helping a Family Member Who Has PTSD
- National Institute of Mental Health (NIMH). Post-Traumatic Stress Disorder (publication)
- Centers for Disease Control and Prevention (CDC) (2026). About Adverse Childhood Experiences
- Centers for Disease Control and Prevention (CDC) (2024). Risk and Protective Factors (ACEs)
- Centers for Disease Control and Prevention (CDC) (2024). Preventing Adverse Childhood Experiences
- Centers for Disease Control and Prevention (CDC), Swedo et al. (2023). Prevalence of Adverse Childhood Experiences Among U.S. Adults — BRFSS, 2011–2020 (MMWR)
- Centers for Disease Control and Prevention (CDC) (2018). 6 Guiding Principles to a Trauma-Informed Approach (based on SAMHSA)
- NHS (UK National Health Service). Complex PTSD
- Cleveland Clinic (2023). CPTSD (Complex PTSD)
- Cleveland Clinic (2023). Types of Trauma and How To Heal
- Cleveland Clinic (2025). Generational Trauma: What It Is and How To Break the Cycle
- Cleveland Clinic (2024). What Is the Fight, Flight, Freeze or Fawn Response?
- Cleveland Clinic (2025). Understanding Childhood Trauma & Adverse Childhood Experiences (ACEs)
- Cleveland Clinic (2023). Attachment Styles
- Corrigan, Fisher & Nutt (peer-reviewed) (2011). Autonomic dysregulation and the Window of Tolerance model of the effects of complex emotional trauma (Journal of Psychopharmacology)
- Dworkin, Brill & Ullman (peer-reviewed) (2019). Social reactions to disclosure of interpersonal violence and psychopathology: A systematic review and meta-analysis (Clinical Psychology Review)
- Bethell et al. (peer-reviewed) (2019). Positive Childhood Experiences and Adult Mental and Relational Health in a Statewide Sample (JAMA Pediatrics)
- U.S. Department of Veterans Affairs, National Center for PTSD. How Does PTSD Affect Families?
- Cloitre et al. (peer-reviewed) (2019). ICD-11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population-Based Study (Journal of Traumatic Stress, 32(6), 833–842)
This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

