Dissociative disorder

Depersonalisation, derealisation, lost time, identity shifts, amnesia beyond ordinary forgetting

UrgentReview due

Compare (7)

At a glance

High-risk causes: 4
Related differentials: 6

Safety snapshot

Watch forHigh-risk blackoutsself-harmchild safety risksevere functional impairment

Presentation hinge

Trauma-linked clusters dominate and often worsen with reminders

Separates the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group. It is not specific to Dissociative disorder.

Clinical review

Rows marked “Whole group”: Applies to the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group — not specific to Dissociative disorder

Why it fits

Depersonalisation, derealisation, lost time, identity shifts, amnesia beyond ordinary forgetting

Key features

Must-not-miss

High-risk blackouts, self-harm, child safety risk, severe functional impairment.

High-risk causes4 causes

High-risk blackouts
self-harm
child safety risk
severe functional impairment

Bedside question

Applies to the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group.

Trauma-linked clusters dominate and often worsen with reminders.

Helpful clues

Immediate action

Applies to the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group.

None listed

Priority steps

Investigations

Applies to the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group.

None listed

Core tests

Mimics / overlap

Applies to the Dissociation / Trauma Response / Somatisation / Functional Neurological Symptoms group.

None listed

Consider

Clinical reference — not validated decision support. Review before use.