How can you tell if someone has a multiple personality disorder?

One of the biggest ways is loss of time. Another is lists, some personalities keep lists of what they want to do or have to do. Do strangers call the person by a different name? Do they find things out of place or out of order? Each personality has a way of keeping things. Do they find things that they didn't buy? Or find that they are missing money they know they didn't spend? These are all ways of telling. There are very small signs also, the sound of thier voice (deeper, higher), they might look down for a min then when they look back up things are a bit different with the way they act. I hope this helps you. It isn't as rare as most people seem to think. Personally I prefer it called multiple personality disorder. They would have 3 or more different personalities. Most usually none know of the others. There are a lot of books to read about it, all of the true cases.

Multiple personality disorder also known as dissociative disorder. People with dissociative disorders chronically escape their reality in involuntary, unhealthy ways ranging from suppressing memories to assuming alternate identities. These dissociative patterns usually develop as a reaction to trauma and function to keep difficult memories at bay.

Treatment may include psychotherapy, hypnosis and medication. Although the course of therapy can be difficult, many people with dissociative disorders are able to learn new ways of coping and lead healthy, productive lives.

Signs and symptoms

There are four major dissociative disorders:

1. Dissociative amnesia
2. Dissociative identity disorder
3. Dissociative fugue
4. Depersonalization disorder

Symptoms common to all types of dissociative disorders include:

1. Memory loss (amnesia) of certain time periods, events and people
2. Mental health problems, including depression and anxiety
3. A sense of being detached from yourself (depersonalization)
4. A perception of the people and things around you as distorted and unreal (derealization)
5. A blurred sense of identity
6. Each of the four major dissociative disorders is characterized by a distinct mode of dissociation.

Signs and symptoms of each disorder may include:

1. Dissociative amnesia. Memory loss that's more extensive than normal forgetfulness and can't be explained by a physical or neurological condition is the hallmark of this condition.
Sudden-onset amnesia following a traumatic event, such as a car accident, happens infrequently. More commonly, conscious recall of traumatic periods, events or people in your life — especially from childhood — is simply absent from your memory.
2. Dissociative identity disorder. This condition, formerly known as multiple personality disorder, is characterized by "switching" to alternate identities when you're under stress. In dissociative identity disorder, you may feel the presence of one or more other people talking or living inside your head. Each of these identities may have their own name, personal history and characteristics, including marked differences in manner, voice, gender and even such physical qualities as the need for corrective eyewear. There often is considerable variation in each alternate personality's familiarity with the others. People with dissociative identity disorder typically also have dissociative amnesia.

3. Dissociative fugue. People with this condition dissociate by putting real distance between themselves and their identity. For example, you may abruptly leave home or work and travel away, forgetting who you are and possibly adopting a new identity in a new location. People experiencing dissociative fugue typically retain all their faculties and may be very capable of blending in wherever they end up. A fugue episode may last only a few hours or, rarely, as long as many months. Dissociative fugue typically ends as abruptly as it begins. When it lifts, you may feel intensely disoriented, depressed and angry, with no recollection of what happened during the fugue or how you arrived in such unfamiliar circumstances.

4. Depersonalization disorder. This disorder is characterized by a sudden sense of being outside yourself, observing your actions from a distance as though watching a movie. It may be accompanied by a perceived distortion of the size and shape of your body or of other people and objects around you. Time may seem to slow down, and the world may seem unreal. Symptoms may last only a few moments or may wax and wane over many years.

It's no longer called a multiple personality disorder, it is called dissociative identity disorder. It is extremely rare. You are probably talking about a person who has one personality, and multiple moods. Either way, the label doesn't matter- if the person needs help, talk to a psychologist.

You basically just assume they don't, and go about your day.

DID (dissociative identity disorder) is extremely rare, and there is a lot of controversy over not only how to diagnose it, but whether or not it actually exists.

Also - not just for DID, but for any disorder - "you" can't tell if they have it - only someone trained to diagnosis it can - It is very complex - there are sooo many different disorders, and multiple factors go into each one.

I would go by percentages. It is a rare chance that you would come across a person in your normal daioy life that has this problem. The chance of it is so small, that it would be more likely a drug problem causing personality swings or someone putting on an act being over dramatic to spice up their boring existance.If they claim to be another name than theirs I would run like hell and replace their role in your life with another new friend that is normal.

It's just so incredibly rare that it's really a non-issue. If you have done research on multiple personality disorder, you know that it would even take a psychiatrist a very very long time to diagnose accurately. It's so rare that there's practically a 99.9% chance that the person you're thinking about doesn't have it. In the whole population, it's only been truly diagnosed in a handful of people in years and years.

hullo MPD is a mental disorder in which the person takes more than one personality every now and then,usually unrelated to each other and sometimes contradict each other,an example on this is the case of the three faces of eve.

Dr solo

the presence of 2 or more distinct idenities or personality states recurrently take control of the persons behavior. where each personality takes on its very own life, differnt from the other

Ask him, then a day later ask him again if he is another person.

u know theres no fact that there is even such a thing as multiple personalities, we don't know if it even exists

i wish i cud discuss about it who has MPD bcuz i have it and i still dont know how to handle my different personalities , time to time i get soo different that ppl get shocked , ( me too) and i have different voices , different had writtings . my modd swings soo much . i cant cope with it .

an incoherent disposition