in the most simple terms an introject is a part of a persons personality that takes on the role of that persons abuser...

you know how when you were a kid you played a game where you copied a friend word for word...

friend...Im going to go swimming
me.....Im going to go swimming
friend ....hey stop it
me....hey stop it
friend...thats not funny
me thats not funny
friend ...I said stop it
me ...I said stop it....

well an introject type personality copies someone who has a negative impact on another....

example maybe a parent was constantly putting their child down, name calling and stuff... in the childs mind their personality gets affected to where a part of their personality starts name calling and such the same as the abusive mother did...

this can happen with no mental disorders and it can happen with any number of mental disorders. it isnt limited to having dissociative disorders.

the trick is to know whether it is part of a persons mental disorder...if so the treatment for that mental disorder will determine how to handle that situation...

example my introject was a DID alternate personality type introject. the treatment for that was the same for any of my other dissociative problems....my learning how to handle my problems, learning how to use grounding rather than dissociating and that I did not deserve to be abused the way my abusers had done to me and that it was ok for me to tell about those abuses. since my introjects job was to abuse me in the same way my abusers did in order to prevent me from telling, when that introjects job/purpose/reason for being was no longer needed to ensure my survival and handle things like telling, that introject merged with me to become one whole person with me again...

Another example someone I know who has depression had an introject that took on the role of her husband telling her she was no good, lazy, and such because her depression kept her isolated, unable to cope with day to day things. the fix for this kind of introject was this person being put on antidepressants. once the antidepressants started working, she was able to function normally again so there was no need for an introject to be calling her lazy and such. that introject just was gone one day.

another example someone I know with psychosis had an introject personality that would cause her to believe it was time to die, but with anti psychotic meds there was no need for that introject personality so it just faded back until the next psychotic episode.

if you think you have an introject contact your treatment providers. they can assess you for mental disorders and physical health problems and normal problems that may be causing this introject to be part of your life and treat you for it.