Dissociative disorders

Also called Depersonalisation-derealisation disorder, Dissociative amnesia, or Dissociative identity disorder

Dissociative disorders are a group of mental health conditions in which a person experiences a disconnection between their thoughts, memories, surroundings, actions or identity. Many people have brief feelings of dissociation at stressful times, but in a dissociative disorder these experiences are frequent and affect daily life.

Last updated Nov 9, 2026

What it is

They are often linked to traumatic experiences, especially in childhood. The mind may use dissociation as a way of coping.

Talking therapies, especially trauma-focused therapy, are the main treatment. Medicines may help related problems such as depression or anxiety.

Common signs

  • Feeling detached from your body or emotions
  • The world seeming unreal or dreamlike
  • Gaps in memory for periods of time or events
  • Feeling that there are different parts of your identity

How it is usually diagnosed

  • Assessment by a mental health professional
  • Ruling out physical causes such as epilepsy or medicines

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Assessment and therapy letters
  • A list of medicines
  • A crisis plan

Questions to ask your doctor

  • What kind of therapy would help me?
  • How can I cope with episodes day to day?
  • Are other conditions such as PTSD involved?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Thoughts of suicide or self-harm: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources