---
title: Dissociative Identity Disorder
slug: 'dissociative-identity-disorder'
speech: noun
defined: true
---

Dissociative identity disorder (DID) is a mental illness that involves disruptions or breakdowns of memory, awareness, identity and/or perception. It can also include the existence of two or more distinct identities (or “personality states”). The distinct identities are accompanied by changes in behavior, memory and thinking.

## Read also

- [plural](/definitions/plural)

## Other Languages

[Français](/definitions/fr_FR/trouble-dissociatif-de-l-identite)