Dissociation & detachment · Understand your experience

Depersonalization / derealization disorder

If you feel distant from yourself or the world seems unreal, you may be looking for words that fit. Learn about these experiences and how a professional can consider them alongside your health and circumstances.

A feeling of unreality is something you can describe; a questionnaire cannot establish its cause.
01 / Get a clearer picture

Two experiences that can occur together or separately.

Depersonalization means feeling detached from your own self, body or mental processes. Derealization means your surroundings feel unreal or distant. The terms describe how things feel, not a claim that you or the world are unreal.

A disorder involves persistent or recurring experiences with significant distress or impairment, after other explanations are considered. In this condition, awareness that it is a feeling rather than reality is retained; that feature alone is not a diagnostic shortcut.

Based on NHS · American Psychiatric Association · MSD Manual Professional

A feeling of unreality is something you can describe; a questionnaire cannot establish its cause.
A visual explanation

Describe the feeling and the wider picture.

  • Depersonalization

    Detachment from your self or body

  • Derealization

    Surroundings feeling unreal or distant

  • The experience

    How often, how long and its effect

  • Wider assessment

    Other explanations and care needs

A conceptual distinction between experiences, with context. It is not a reality test or a diagnostic flowchart. Source: NHS
A closer look

The experience and its impact both matter.

Depersonalization describes feeling detached from yourself or your mental processes; derealization describes feeling detached from your surroundings. The existing comparison introduces those terms. A clinical disorder requires more than recognizing a description: persistence or recurrence, distress or impairment and alternative explanations are considered.

The page stays visually steady because a distortion effect would not explain your experience or help establish a diagnosis. You can read the text without testing your perception.

  • Description

    How would you explain the detachment in your own words?

  • Course

    When did you notice it, and is it recurrent or changing?

  • Impact

    What is difficult to do or participate in?

  • Context

    What other health or life factors need assessment?

Areas for a care conversation, not a reality test or a progression of symptoms.

Based on MSD Manual · NHS

A steady setting and a clear conversation can leave room to describe an unsettling experience.
02 / Make sense of what has changed

What is the experience like for you?

These examples offer words for a conversation. They are not a reality test or a diagnosis.

Your sense of self

Feeling distant from your body, thoughts or feelings.

Your surroundings

Surroundings seeming dreamlike, unfamiliar or far away.

Persistence & distress

Episodes recurring or lasting in a way that feels distressing.

Daily activities

Daily activities becoming harder because of the experience.

Based on NHS · MSD Manual Professional

In everyday life

You do not have to demonstrate the feeling.

In a fictional example, Remy finds an experience of detachment hard to explain and worries that an appointment will require proving it. Remy begins with when it happens and how it interferes with daily activities.

The clinician can ask clarifying questions. You do not need to repeatedly inspect your surroundings, check whether you feel real or compare your experience with a visual effect on a screen.

Fictional examples to explain an experience. They are not a checklist or a diagnosis.

A description

“I feel detached in a way I find difficult to put into words.”

An impact

“It makes it harder to take part in my day.”

A request

“Please help me understand what assessment is appropriate.”

Based on MSD Manual · NHS

03 / Put your experience into context

The wider context matters.

Assessment considers symptoms and possible mental or physical explanations, including medicines, substances and neurological conditions. The clinician decides which examinations or investigations are appropriate.

Tell them what changed and what you want help with. Neither CDS nor a general dissociation score can establish the cause or replace clinical assessment.

Based on MSD Manual Professional · Sierra and Berrios · PubMed · VA National Center for PTSD

Your experience, in three prompts
  1. 1
    What has changed?

    One example from a recent day.

  2. 2
    When do you notice it?

    When it began and how often it happens.

  3. 3
    What feels harder?

    The effect on your life and what you want help with.

Make a few notes
Room for your questions

A clinician considers other possible causes.

Detachment experiences can occur in other mental-health or physical conditions and in relevant substance contexts. Assessment considers the history and whether another explanation better accounts for the experience. Retained awareness can be relevant clinically, but it is not a self-diagnosis test.

Tell a professional about new changes, other symptoms and relevant medicines or substances. The clinician can decide what examination or further assessment is appropriate rather than using a universal checklist of medical tests.

Based on MSD Manual

04 / Explore your support options

Ask about an approach that fits the assessed needs.

You and your clinician can discuss what fits your needs, preferences and health.

Based on NHS · MSD Manual Professional

Professional care

Psychotherapy may be used to help with the experiences and associated difficulties. Medication decisions may address accompanying conditions; there is no clearly established medication that works for everyone with DPDR.

Support in your daily life

You can ask what the approach is intended to help with, how progress will be discussed and what to do if an exercise feels uncomfortable. No sensory challenge or simulation is needed to read this information.

Understand your options

Ask for a plan that explains its purpose.

Psychotherapy can be part of care, and separate anxiety or depression may need treatment where present. There is no single web exercise that establishes the cause or provides a personalized treatment plan.

Ask what the clinician proposes to address, what the approach involves and how your functioning and distress will be reviewed. If an explanation does not make sense, ask for it in clearer language.

Understanding

“What possibilities have you considered?”

Treatment

“What is the aim of this approach for me?”

Review

“How will we know whether the plan is useful?”

Based on MSD Manual · NHS

Make room for what helps

Practical support can stay focused on today.

You might ask a trusted person for help arranging care or with an activity that has become difficult. Explain what kind of support you want without requiring them to decide whether your surroundings are real.

If the experience changes suddenly or comes with acute confusion or other concerning symptoms, seek appropriate medical help. Use the care guidance on this page rather than repeatedly testing yourself online.

Based on MSD Manual · NHS

05 / Choose your next step

A little clarity. A place to start.

Explore a tool, prepare a conversation or find someone to talk to. Choose what feels useful to you.

Questionnaires you might hear about

CDS focuses on depersonalization experiences over a longer timeframe. DSS-B covers broader recent dissociation. They measure different things; neither identifies DID.

CDS

A specific depersonalization symptom profile

Cambridge Depersonalisation Scale

The original study describes frequency and duration over the preceding six months, with comparisons between selected clinical groups.

What it can and cannot tell you

That study is not a general-public diagnostic guarantee. The exact current original form, scoring manual and commercial digital permission remain unresolved; the self-test is not available here.

Read the original study

Based on Sierra and Berrios · PubMed

DSS-B

Broader recent dissociation symptoms

Dissociative Symptoms Scale—Brief

An eight-item past-week measure from DSS, described by VA for clinical and research assessment.

What it can and cannot tell you

It is not a DPDR or DID classifier. More representative cut-point research and independent interpretation review remain; no questionnaire is administered on this hub.

Read the VA measure context

Based on VA National Center for PTSD

You can seek help without a score. A questionnaire cannot replace a conversation about your needs.

Something you can use today

Practical guideYour words

Prepare for a conversation

A few prompts to help you explain what you have noticed and what you would like help with.

  • A simple notes builder
  • Copy your notes to keep
  • No account needed

You decide how much to write and share.

Find your words
Support directorySomeone beside you

Find your next kind of support

Explore where to begin with everyday support, professional help or an urgent conversation.

  • Ways to ask for help
  • Country-specific crisis contacts
  • Support at your own pace

If you need urgent help, go straight to support.

Find support
You can start right here

Your first sentence does not need to be perfect.

If detachment or unreality is recurring, distressing or disrupting your life, seek a professional assessment. You do not need to decide whether one term fits better before asking for help.

Based on NHS · MSD Manual Professional

“I feel detached from myself or my surroundings, and it is distressing. Can we look at what might be contributing and what support is appropriate?”
Make it sound like you
Things you may be wondering

Your questions, with room for nuance.

You can read just the answer you need.

Are depersonalization and derealization the same term?

They refer to different aspects of detachment: the sense of self or mental processes, and the surroundings. They can occur together, but recognizing either description is not a diagnosis.

Based on MSD Manual · NHS

Does knowing the feeling is unusual diagnose the disorder?

No. A clinician considers the wider pattern, distress, functioning and other explanations. Awareness alone is not a diagnostic test.

Based on MSD Manual

Is it always caused by anxiety or trauma?

A professional should consider the individual history and possible mental-health, physical-health and substance-related explanations. This page does not assign a cause from a description.

Based on MSD Manual

Should I keep checking whether I feel real?

This hub does not offer reality-checking exercises or perception tests. You can describe what is happening and seek an appropriate assessment without repeatedly testing the experience here.

Based on MSD Manual · NHS

Where this information comes from.

Use this hub to learn and prepare questions. It does not diagnose you or recommend a personal treatment plan. By Selfmora editorial; sources checked . Updated .

Additional explanations and examples: sources consulted . Examples illustrate ideas; they do not assess your personal health. Your questions

Our editorial approach