Dissociative disorders are a range of conditions that can cause physical and psychological problems.
Some dissociative disorders are very shortlived, perhaps following a traumatic life event, and resolve on their own over a matter of weeks or months. Others can last much longer.
Dissociation is a way the mind copes with too much stress.
People who dissociate may feel disconnected from themselves and the world around them.
Periods of dissociation can last for a relatively short time (hours or days) or for much longer (weeks or months).
It can sometimes last for years, but usually if a person has other dissociative disorders.
Many people with a dissociative disorder have had a traumatic event during childhood.
They may dissociate and avoid dealing with it as a way of coping with it.
Someone with a dissociative disorder may have problems with:
- periods of memory loss
They may also feel uncertain about who they are and have many different identities.
Types of dissociative disorder
There are several different types of dissociative disorder.
The 3 main types are:
- dissociative disorders of movement or sensation
- dissociative amnesia
- dissociative identity disorder
Dissociative disorders of movement and sensation
Dissociative disorders of movement or sensation include convulsions (seizures), paralysis and loss of sensation.
There does not appear to be a physical cause, but it seems to be the result of a communication problem within the brain.
The symptoms are sometimes confused with neurological disorders like epilepsy or stroke.
Someone with dissociative amnesia will have periods where they cannot remember information about themselves or events in their past life.
They may also forget a learned talent or skill.
These gaps in memory are much more severe than normal forgetfulness and are not the result of an underlying medical condition.
Some people with dissociative amnesia find themselves in a strange place without knowing how they got there.
They may have travelled there on purpose, or wandered in a confused state.
These blank episodes may last minutes, hours or days. In rare cases, they can last months or years.
Dissociative identity disorder
Dissociative identity disorder, or multiple personality disorder, is an unusual disorder.
Someone diagnosed with dissociative identity disorder may feel uncertain about their identity and who they are.
They may feel the presence of other identities, each with their own names, voices, personal histories and mannerisms.
Typical symptoms include:
- feeling like a stranger to yourself
- feeling like there are different people within you
- referring to yourself as "we"
- behaving out of character
- writing in different handwriting
Mind has more information about the different types of dissociative disorders.
Someone with a dissociative disorder may also have other mental health conditions, such as:
- medically unexplained symptoms
- post-traumatic stress disorder
- mood swings
- anxiety and panic attacks
- suicidal tendencies or self-harm
- an eating disorder
- obsessive compulsive disorder
They may also have problems sleeping (insomnia).
People with dissociative disorders may have repeated investigations or treatments for similar conditions with a physical cause.
This in itself can cause symptoms or further illness.
The causes of dissociative disorders are poorly understood.
They may be related to a previous traumatic experience, or a tendency to develop more physical than psychological symptoms when stressed or distressed.
Someone with a dissociative disorder may have experienced physical, sexual or emotional abuse during childhood.
Some people dissociate after experiencing war, kidnapping or even an invasive medical procedure.
Switching off from reality is a normal defence mechanism that helps the person cope during a traumatic time.
It's a form of denial, as if "this is not happening to me".
It becomes dysfunctional when the environment is no longer traumatic but the person still acts and lives as if it is, and has not dealt with or processed the event.
Mind has more information about the causes of dissociative disorders.
Diagnosing dissociative disorders
If a GP thinks you have a dissociative disorder, they'll refer you to a mental health specialist for a full assessment.
They may also contact a medical specialist, such as a specialist in conditions affecting the nervous system (neurologist), to make sure you're examined to make the correct diagnosis.
The specialist who carries out your assessment should be specially trained and have a good understanding of dissociative disorders.
During the assessment, they'll ask you how you're feeling and whether you have had a traumatic experience in the past.
They'll also ask about any medication you're taking and whether you use drugs.
It's important to be honest about your symptoms and not to feel ashamed or embarrassed, so you can receive the help and support you need.
Mind has more information about how dissociative disorders are diagnosed.
Many people with a dissociative disorder make a full recovery with treatment and support.
Physical therapies may be used to address specific physical symptoms, such as paralysis, speech loss and walking difficulties.
Talking therapies are often recommended for dissociative disorders.
The aim of talking therapies such as counselling and psychotherapy is to help you cope with the underlying cause of your symptoms, and to learn and practise techniques to manage the periods of feeling disconnected.
There's no specific medicine to treat dissociation, but medicines like antidepressants may be prescribed to treat associated conditions like depression, anxiety and panic attacks.
If you're feeling suicidal
If you have, or have had, thoughts about taking your life, it's important you ask someone for help.
It's probably difficult for you to see it at this time, but you're not alone or beyond help.
There are people you can talk to who want to help:
- speak to a friend, family member or someone you trust, as they may be able to help you calm down and find some breathing space
- call the Samaritans' free 24-hour support service on 116 123
- go to, or call, your nearest A&E and tell the staff how you're feeling
- contact NHS 111
- make an urgent appointment to see a GP
What to do if you're worried about someone
If you're worried that someone you know may be considering suicide, try to encourage them to talk about how they're feeling.
Listening is the best way to help. Try to avoid offering solutions and try not to judge.
If they have previously been diagnosed with a mental health condition, such as depression, you can speak to a member of their care team for help and advice.
Further help and support
If you have a dissociative disorder, getting help and support is an important part of the recovery process.
Talking to your partner, family and friends about how your past experiences have affected you can help you come to terms with what happened, as well as helping them understand how you feel.
You may also find these organisations helpful:
Mind has a more comprehensive list of support organisations for people with dissociative disorders.
Reading about other people with similar experiences may also help.
You can read people's personal accounts of living with a number of different mental health conditions on healthtalk.org.