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Dissociative

Dissociative identity disorder

Presence of two or more distinct identity states, with memory gaps in daily life. It is usually associated with severe and repeated childhood trauma.

Common signs

Significant memory gapsFeeling there are different parts of oneselfSudden changes in behaviour

Tips

For you

  1. Seek specialist trauma therapy
  2. Stabilisation is the first step
  3. Keep a record to help you remember

For family and friends

  1. Listen without judging or questioning what they experience
  2. Support them in seeking specialist trauma therapy

When to ask for help

  1. If there is risky behaviour or self-harm: 024
  2. If the gaps put you in danger

Are you having a really hard time? If you're thinking of harming yourself, call 024 (free, 24 hours) or 112.

Guidance test

Answer thinking about the last few weeks. There are 8 questions and you get your result straight away. Your answers are not saved or sent.

0 of 8
1. I have memory gaps for things I have done
2. I find things I don't remember buying
3. I feel there are different parts inside me
4. Others tell me I have done things I don't remember
5. Sometimes I feel as if I were another person
6. My personality changes abruptly
7. I have a history of severe trauma
8. These experiences scare or confuse me
Also take the full post-traumatic stress test →

Free resources

Downloadable PDF sheetSigns, tips and resources to print or saveFree guide: Trauma and post-traumatic stressFree resource from Clínica Vivaldi

Related disorders

Dissociative amnesiaDissociativeDepersonalisation/derealisation disorderDissociative

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Reviewed by María Teresa Fernández Vicente, health psychologist and neuropsychologist (registration no. CV17304), in November 2026. Educational information prepared by the Clínica Vivaldi team based on the DSM-5-TR classification. It does not replace a professional assessment and cannot be used to diagnose.