Most of us have, at one time or another, said something like "a part of me wants to do this, and a part of me does not". We talk this way without thinking about it. It is one of the most natural ways the mind describes itself. Internal Family Systems — IFS for short — takes that ordinary language seriously and builds an entire way of working from it.
This is a gentle introduction for people who have been hearing the term and wondering what it actually is, and whether it might be useful for what they are carrying. The aim is not to convert you to a particular method but to give you a clearer sense of what IFS sees, what it does, and the kinds of difficulty it tends to suit.
You are not one self. You are many, and that is not a problem.
Where IFS comes from
IFS was developed by Richard Schwartz in the 1980s, originally as a way of working with people whose difficulties had not responded well to other approaches. He was struck by how often clients spoke of their inner lives in terms of parts — a critical part, a frightened part, a part that wanted to give up, a part that pushed harder. Rather than treating this as figurative, he began to work with it as if it were literal, and the results were remarkable.
Today IFS is one of the fastest-growing therapeutic models in the world. There is a strong evidence base for it in trauma, in eating disorders, in chronic pain and in everyday relational difficulty. It is taught and certified through the IFS Institute in the United States, and there is a growing community of UK-trained practitioners.
The core idea
IFS proposes three things.
First, that we all have many inner parts — different sides of ourselves, each with its own perspective, feelings and history. These are not pathology. They are how the mind organises itself. Some are loud, some are quiet, some are familiar, some have not been heard from in years.
Second, that underneath all the parts there is something Schwartz calls the Self — a quality of warm, curious, calm awareness that every person has access to, even when it is hard to feel. The Self is not a part. It is the natural ground from which a person can relate to their parts without being overwhelmed by them.
Third, that the parts that have become loudest or most extreme are usually carrying something old — a burden they took on at a time of overwhelm, often in childhood — and that they can be helped to set those burdens down with patience and care.
The three kinds of parts IFS describes
IFS describes three broad categories of part, which can be a useful map even if you never see an IFS therapist.
Managers are the proactive protectors. They are the parts that try to keep things running, prevent bad feelings from arising, anticipate problems, and hold a particular kind of order. The inner critic. The perfectionist. The over-prepared one. The peacekeeper. The one who keeps lists. These parts are usually exhausted and rarely thanked.
Firefighters are the reactive protectors. They are the parts that come in fast when difficult feelings break through, with the job of putting out the fire by any means necessary. The bingeing part. The drinking part. The scrolling part. The angry part. The dissociating part. These parts are often the ones we feel most ashamed of, and they almost always have a benign intention — to interrupt unbearable feelings — even when their methods are not.
Exiles are the parts the protectors are protecting. They are the younger, more wounded parts that carry the original pain — the fear, the shame, the loneliness, the grief, the feeling of not being loved or safe or wanted. The protectors work so hard precisely because they have decided the exiles must never be felt again.
This is what makes IFS distinctive. It treats the protective parts — including the ones we hate — as well-meaning, and works with them rather than against them.
What an IFS session can look like
An IFS session does not look like a roundtable conversation. It looks like ordinary therapy, with a particular quality of attention to what is going on inside you.
The therapist might invite you to notice what part is most present today. They might ask where you feel it in your body. They might ask whether you can offer that part some curiosity, rather than trying to make it go away. They might ask what it is wanting you to know.
Over time, the work moves towards letting the protective parts know that their job has been seen, that they are not being taken away, and that there is a Self underneath who can take on some of the load. As the protectors soften, the exiles they have been protecting can come slightly more into view, and can be tended to.
This is gentler than it sounds. It is not about confronting your inner child or forcing anything. It is about slow, patient relationship-building with the different sides of yourself.
What IFS is good for
IFS suits a wide range of difficulties, and is particularly good for:
Complex or relational trauma, where there are many protective layers around vulnerable material.
Eating difficulties, where the bingeing or restricting parts often respond well to being understood rather than fought.
Self-criticism and perfectionism, which are usually a manager part trying to protect against an old fear of being unloved or unsafe.
Anger that feels disproportionate, where the firefighter is doing emergency work to interrupt an underlying pain.
Long-running depression or anxiety that has not shifted with other approaches, where there is often a quiet exile somewhere that has not yet been heard.
Difficulty with decision-making and inner conflict, where parts pull in different directions.
What IFS is less suited to
IFS may not be the right starting point for active crisis — severe suicidal ideation, current self-harm, untreated psychosis — where the priority is safety and stabilisation rather than exploratory work. Specialist NHS services are usually the right first port of call there.
It is also less helpful as a single-session technique. The model is designed for ongoing relational work, in which trust between you and your therapist builds the conditions for the inner work to be possible.
Where I sit with IFS
I work integratively, which means IFS is one of the models I draw on rather than the only one. For some clients, IFS becomes a central way we work. For others, we use IFS language and ideas alongside other approaches as it earns its place. The work is decided by what is in the room, not by a manual.
Many people find that even a small introduction to parts-language changes how they relate to themselves. The simple shift from "I am self-critical" to "a part of me is being critical, and I wonder what it is trying to protect me from" can be quietly transformative on its own.
A few honest questions
"Does IFS believe I have multiple personalities?" — No. IFS distinguishes carefully between ordinary inner parts — which everyone has — and dissociative identity disorder, which is a specific clinical condition with very different features.
"What if I cannot feel any parts?" — Many people start there. We work with what is there, often beginning with what comes up in the body. The parts become more findable with practice.
"What if I do not want to make friends with the part of me I hate?" — That is welcome too. The work does not require you to like every part. It begins with curiosity, which is a much lower bar than affection. Liking, where it happens, comes much later.
Books worth reading
If you want to read more, Richard Schwartz's No Bad Parts is a clear and accessible introduction. Janina Fisher's Healing the Fragmented Selves of Trauma Survivors brings IFS into dialogue with trauma work. Frank Anderson's Transcending Trauma goes deeper for those interested.
And finally
One of the quietest gifts of IFS is the reminder that you are not your worst part. The critical voice, the bingeing part, the angry part, the avoidant part — none of these is the whole of who you are. They are all doing what they took on, and they can all soften.
You are larger than any one of them.
If you would like to talk
If something here has resonated and you would like to talk it through, you can arrange an introductory call by emailing me at FelicityJaggar@gmail.com or leaving a message on 07923 319800. The introductory call is free, lasts fifteen to twenty minutes, and carries no obligation to take anything further.