What Is IFS Therapy?

Before the meeting starts, there's already a voice running through everything you should have handled better. After the conversation that went fine, it's there telling you that you should have done more, handled it better, moved faster. You've probably tried to reason with it. Maybe you've tried to outrun it by staying busier. Neither has worked for long, because the voice isn't a malfunction. It learned, at some point, that pushing you hard was how it kept you ahead.

What is IFS therapy? It's a model of psychotherapy built on the idea that voices like that one exist for a reason. They developed to do something, often something that worked for a long time. And they'll keep doing it until they believe you don't need that kind of harsh feedback to perform.

This post covers what parts are, what the Self is in IFS, how a session works, and what the model is and isn't useful for.

Understanding IFS Therapy

IFS therapy, or Internal Family Systems, is a model of psychotherapy that understands the mind as made up of multiple parts, each with its own history, perspective, and way of trying to protect you.

The model was developed by Richard Schwartz in the 1980s. Schwartz was a family therapist at the University of Illinois who found that family therapy alone wasn't producing the full symptom relief his clients needed. When he asked them why, they kept describing internal voices they called their "parts." The patterns he had been tracking between family members were also playing out inside individual people. He started applying systems thinking inward, and IFS was the result.

The idea that the mind contains multiple parts isn't new. Freud described the id, ego, and superego. Carl Jung went further with his concept of complexes, semi-autonomous clusters in the psyche that carry their own emotional charge and can act almost like independent personalities. Transactional analysis has ego states. Object relations theory has internal objects. IFS took that long-standing idea and built a practical, structured way to work with the parts directly and understand how they relate to one another. That structured method is what earlier models didn't have.

The systems framing matters. Systems thinking is the same approach used in family therapy, organizational behavior, and engineering. It holds that you can't understand a component in isolation. You have to understand how the parts interact. Applied to the mind, this means the inner critic from above isn't just a voice to manage. It's one member of an internal system doing a job, shaped by the same history as the other parts around it. Change in a system comes from changing the relationships between components, not from overriding any one of them.

Most therapy works at the level of symptoms. IFS works at the level they come from.

What are parts in internal family systems?

Parts are the distinct voices, reactions, and impulses that make up your inner world. The part that keeps pushing through when everything in you wants to stop. The one that scans every room for how you're landing. The one that replays the conversation at 2am looking for what you got wrong. IFS treats each of these as a real, discrete aspect of who you are, not as symptoms to push past.

Every part developed for a reason. Most formed early, in response to an environment that demanded vigilance, performance, caretaking, or withdrawal. They're adaptive responses that got locked in and kept running long after the original circumstances changed.

IFS sorts parts into protectors and exiles. Protectors are the parts with a job to do, the ones keeping you safe and functioning. They come in two types, managers and firefighters.

Managers

Managers are the parts running your daily life. They keep you functional, organized, and in control. The inner critic from the introduction is a manager. So is the part that overworks, the one that plans obsessively, the one that scans every interaction for signs of disapproval. Managers are often exhausting to live with, but their intent is protective. They believe that if they stay on top of everything, including you, nothing bad will happen.

Firefighters

Firefighters activate when something slips through. When a manager's defenses get overwhelmed and a wave of feeling starts to surface, firefighters move fast to shut it down. They reach for whatever interrupts the feeling fastest. That can look like a drink, doom-scrolling, compulsive grooming, or checking out entirely. Sometimes it looks self-destructive. Other times it looks like overworking or zoning out. Either way, it runs on autopilot. The part is operating from a script it learned a long time ago, below the level of conscious choice. Most people aren't aware in the moment that they're distancing themselves from a feeling at all.

Exiles

If managers and firefighters exist to protect, that protection is organized around a vulnerability. A part carrying hurt, shame, or fear from an experience that at some point overwhelmed the system. Sometimes that's a single event: a death, a near-death experience, something deeply shaming that the system decided could never be allowed to happen again. More often it's cumulative, the slow accumulation of conditions that shaped how someone learned to be in the world. Sustained pressure at home, impossible standards at school, chronic criticism, bullying. Or the things that should have happened and didn't: a parent who was absent or checked out, emotional attunement that was missing at the times it was needed most. Either way, the system organized itself around that pain. When we work carefully enough with the protectors, building enough trust that they're willing to ease up, what surfaces is the exile. Everything else in the system has been organized around keeping it contained, and reaching it is what makes lasting change possible.

One client described what shifted once she could see this: "I learned I have competing voices and how they don't work together and how they can work together." Another put it differently. He could name what was happening in real time now. "I can know who's talking. [The worrier] has been really loud lately."

What is the concept of Self in IFS?

Of everything in IFS, the Self is the hardest concept to take on faith and the most important to understand. The Self is the calm, grounded center underneath the parts, present in every person whether or not they can feel it. It isn't itself a part, and unlike a part it can't be damaged or lost. Parts can cover it, crowd it out, or take over for long stretches, but the Self is always there underneath. Most of the work in IFS comes down to clearing enough room for it to lead.

For people who've spent years managing themselves through effort and willpower, this lands as a strange idea. The premise is that the calm and steadiness are already in you, currently obscured by parts that have been working overtime to keep you safe. When a manager eases up, when a firefighter trusts that it doesn't have to slam the door, what's left is Self. People describe it as feeling settled, clear, able to look at their own pain without being swallowed by it.

Schwartz identified a set of qualities that show up when someone leads from Self rather than from a part. They're commonly grouped as the 8 C's and the 5 P's.

What are the 8 C's of Self?

The 8 C's are calm, curiosity, compassion, clarity, courage, confidence, creativity, and connectedness. They emerge on their own when the parts running the system relax enough to let them through, rather than being something you manufacture through effort. A client who once couldn't sit with a painful memory without spiraling, and who later can stay with it and feel something closer to curiosity, is watching the 8 C's come online.

What are the 5 P's of Self?

The 5 P's are presence, perspective, patience, persistence, and playfulness. They were added later to describe the same Self energy from a slightly different angle. Presence is the capacity to stay with what's happening instead of leaving it. Perspective is seeing a situation without a part's distortion laid over it. Alongside the 8 C's, they describe what being in Self feels like from the inside: here, steady, and able to lead.

Does IFS therapy actually work?

Yes. IFS has a real, growing evidence base, and it works by reaching something other approaches often don't. IFS was recognized as evidence-based by SAMHSA's registryin 2015, before SAMHSA closed that registry in 2018. A 2025 review of 27 studiesfound it promising for PTSD, depression, and chronic pain. The evidence is real and still growing.

Most approaches to a harsh inner critic try to talk you out of it. They challenge the thought, weigh the evidence, and offer a more accurate one in its place. That can help, but for a lot of people it doesn't hold, because the critic isn't persuaded by evidence. And when you push against it, it tends to push back harder. The more you argue with the part of you that says you're not good enough, the louder and more dug-in it gets.

IFS works differently. Instead of arguing with the critic, we get curious about it. That voice convinced you're going to be exposed as a fraud turns out to have a reason for being there, and it's usually not the one you'd guess. Underneath the criticism is a part working hard to protect you.

Once you understand what the part is protecting against, something shifts. You start to see it as a part of you rather than the whole truth about you. Over time, as the part comes to trust that it can ease up without everything falling apart, it stops working so hard. The pressure that no amount of arguing could touch begins to let go.

What is an IFS therapy session like?

We start with the problem you came in with, whether that's the inner critic running you ragged, anxiety that won't switch off, or burnout that rest doesn't fix. We turn toward the part involved and get to know it. Sometimes you speak as a part directly rather than about it, which in IFS is called direct access, and it often brings information and relief that talking about the part doesn't reach. One client described that moment: "A few sessions ago I actually spoke in that voice and I had a lot of relief."

As the protectors come to trust that they don't have to work so hard, the work can reach what they've been guarding, and that can be tender the first time you touch it. We don't rush there. We work with the discomfort to help you feel grounded as we approach painful memories and feelings. This stretch of the work is usually the most frightening, and it's also the part my clients most often name as the most rewarding. One client put it this way: "That work that felt harder and uglier made me feel more confident."

What is parts work in therapy?

Parts work is any therapeutic approach that treats the mind as made up of distinct parts and works with them individually rather than treating you as a single, unified voice. IFS is the most widely practiced form of parts work today, though the broader idea shows up across several models. They share a basic recognition. The part of you that wants to change and the part that keeps doing the thing are both real, both worth listening to, and neither gets resolved by one side overpowering the other.

Who is a good candidate for IFS?

IFS works for a wide range of people. It was first developed in the 1980s for eating disorders, and it's now used for trauma and PTSD, anxiety, depression, addiction, chronic pain, and relationship difficulties, across individual, couples, and family therapy. It's been used with people of different ages, backgrounds, and communities. Much of that range comes from the model itself. Whatever the presenting problem, IFS works with the protective parts underneath it, and nearly everyone has those.

It tends to be a strong fit when a problem is being driven by something logic and willpower haven't been able to reach. That describes a lot of people who have already tried other kinds of therapy and found it didn't go deep enough. One client described the decision this way: "I saw it wasn't CBT therapy and I knew that wasn't for me; I wanted to try something [different]."

IFS isn't the right fit for every person or every moment. Its research base, while growing, is still thinner than it is for older approaches, and the strongest evidence so far is for depression, chronic pain, and PTSD. Clinicians also caution against it for people who are actively experiencing psychosis or having trouble staying oriented to reality, where working with the mind as separate parts can be disorienting rather than steadying. For most people, though, the parts framework tends to match their actual experience closely, which is part of why it has spread so quickly.

What is IFS therapy used to treat?

IFS is used for anxiety, depression, trauma and PTSD, addiction, chronic pain, grief, and relationship difficulties, among other concerns. It works across that range because it doesn't organize treatment around a diagnosis. It starts with whatever brought you in and gets curious about the parts of you involved in it.

This is where IFS differs from approaches that treat a symptom as a malfunction to correct. In IFS, a symptom is usually a part doing a protective job. Anxiety might be a part scanning for danger so you're never caught off guard. A harsh inner critic might be a part trying to keep you performing. The behavior looks like the problem, but the part behind it is trying to help, in the only way it learned how.

And protection implies something to protect. Underneath a protective part is usually a younger, more vulnerable part carrying hurt from earlier on, the pain the whole system has organized to keep from surfacing. That's true whether someone comes in with burnout or grief or the aftermath of trauma, which is part of why IFS is used so widely. That vulnerability is specific to you. Two people with the same diagnosis usually have very different inner worlds, formed in different histories, carrying different fears. IFS starts by learning yours, and that specific work is where lasting change happens.

I work as an IFS therapist with high-achieving professionals dealing with anxiety, burnout, trauma, and grief. Whatever brings you in, we start with the problem in front of you and follow it to what's underneath.

Does IFS work for anxiety?

Yes. IFS is commonly used for anxiety, and the research on it is growing. It approaches anxiety differently than most treatments do.

Most approaches try to reduce the anxious thoughts. That can help, but for a lot of people the anxiety keeps running no matter how well they talk themselves down. In IFS, anxiety is a part of you doing a job, not a malfunction to correct. It scans for what could go wrong and works to keep you safe. It has its reasons, and it won't stand down just because you've argued with it, any more than a smoke alarm stops ringing for an explanation.

So instead of fighting it, we get to know it. As that part feels understood rather than overruled, it often starts to ease up, and that alone can bring real relief. Underneath it is usually a younger part carrying older pain, and as trust builds, that hurt can be reached and, in time, healed. Some of that work is slow. But even early on, an anxious part that finally feels understood doesn't have to work so hard.

Is IFS a trauma therapy?

Yes. IFS is a model of the whole inner system, and trauma is one of the things it's most widely used for. The fit makes sense once you see how trauma tends to organize a person. Something overwhelming happens, or hard conditions grind on too long, and the system builds protection around the pain so you can keep functioning. Protective parts wrapped around a wound is exactly the structure IFS is built to work with.

Trauma work in IFS begins with the protectors, the parts standing guard, before it goes anywhere near the wound. These are the parts that keep you busy, keep you in control, keep you from feeling too much. As they come to trust that they don't have to hold the line alone, they begin to relax, and the work can reach the part still carrying the pain. Going in that order is what keeps the work from flooding you.

This is part of why some people find IFS gentler than approaches built around exposure to the memory. It doesn't require you to recount the event in detail or relive it in order to heal. The pain is approached at a pace your system sets, not on a protocol's schedule. One client described the shift this way: "I feel like I can talk about the things that have happened easier... [before] if I felt really overwhelmed I would just shut down, now I can sit with it."

Which is better, EMDR or IFS?

Neither is better in general. Both go beneath ordinary talk therapy to work with the root of trauma, and both are non-pathologizing. The difference is in how they get there, and which one fits depends on what brought you in.

EMDR, developed by Francine Shapiro, is built around reprocessing specific memories. The idea is that a distressing event can get stored in a kind of stuck, high-charge state and keep firing in the present as though it were still happening. EMDR uses bilateral stimulation, usually guided eye movements, taps, or tones, while you hold the memory in mind, which helps the brain reprocess it so it loses its charge. It's structured, and for a single clear traumatic event it's often faster. It has a strong research base for PTSD and is recommended by the APA, the WHO, and the VA.

IFS starts somewhere else. Rather than targeting a memory, it works with the parts of you that formed around the pain, the protectors that keep it contained and the younger part still carrying it. This tends to fit complex, long-running patterns, the kind that build up over years rather than tracing to a single moment. Where EMDR reprocesses the memory, IFS changes your relationship to the parts holding it.

The two also feel different in the room. EMDR follows a defined protocol, a set sequence of phases that keeps the work contained. IFS is looser and more exploratory. There's a general map, but the session follows what comes up rather than a fixed set of steps, and your own system sets much of the direction. For some people the structure of EMDR feels steadying, and for others the openness of IFS is what lets them go where they need to.

The two aren't mutually exclusive. A growing number of therapists combine them, leaning on IFS first to help protective parts feel safe so that reprocessing doesn't overwhelm the system. If you're weighing them, the difference usually comes down to what you're dealing with. A single, clear event often responds well to EMDR. A pattern that built up over years, or conditions that went on too long, tends to be a better fit for the parts work of IFS.

What is the IFS therapy controversy?

The controversy most people are asking about traces back to Castlewood, an eating-disorder treatment center that used IFS. Several former patients sued the center and its clinical co-director in the early 2010s, alleging that hypnosis and memory-recovery techniques had been used to implant false memories. The lawsuits were later dismissed, resolved without any finding of wrongdoing in court. A 2025 article in New York Magazine's The Cut, "The Therapy That Can Break You," revived the story and tied it to IFS.

Two things are worth knowing. First, the clinician who was sued, Mark Schwartz, is not related to Richard Schwartz, the founder of IFS, though the shared surname keeps the two tangled in the retelling. Richard Schwartz did consult and train at Castlewood, so the association isn't invented, but the allegations named the center's own staff and their methods.

Second, and more important, those methods run opposite to how IFS is meant to be practiced. IFS is consent-based. It doesn't hypnotize, it doesn't dig for buried memories, and it doesn't push past a client's hesitation. The coercive memory recovery alleged at Castlewood is closer to the discredited recovered-memory practices of the 1990s than to the parts work described on this page. The fair criticism is of how the model was misused there, not of the model itself. That distinction is the one the New York Magazine headline blurred, indicting the therapy rather than the people who misapplied it.

The other criticisms are milder. IFS has a smaller research base than CBT or EMDR, and its language of parts and Self can sound strange at first. But neither means it doesn't work. What I've seen in my own practice, and what many clinicians report, is real, lasting change.

How long does IFS therapy take?

Most people notice real relief within the first four to six months of weekly sessions. That's usually enough to feel a meaningful shift in whatever brought you in: a quieter inner critic, less bracing, more room to think. For patterns that go back further, deeper change tends to take longer; typically one to two years or more. That's consistent with what research on treating patterns rooted in childhood generally shows.

Therapy is generally very good at providing you skills for coping and a place to talk through your week. Although that's important, it's not what most of my clients are looking for. They want to transform the patterns underneath so the change holds instead of needing to be managed indefinitely.

This kind of change doesn't come from figuring yourself out first. It comes from doing the work, and self-awareness tends to follow it. One client described what that looked like: "Getting a better understanding of myself, my behaviors and the way I am... I know why I have certain insecurities now. It's helped me understand where I want to go and who I want to be and evolve into."

An Invitation to Go Further

This post covered what IFS actually is, how parts and the Self work together, what a session looks like, and where the research stands. Understanding it this thoroughly puts you ahead of where most people start. Find an IFS therapist to discover what changes when someone actually works with those parts instead of around them.

Author Bio

Ryan Thurwachter, LCSW Menlo Park IFS Therapist

Ryan Thurwachter, LCSW, is a therapist in Menlo Park, CA. He specializes in IFS therapy and works with high-achieving professionals virtually across California and New Jersey dealing with anxiety, burnout, trauma, and grief. Ryan is Level 2 trained through the IFS Institute and came to IFS first as a client, years before he trained in it, which is part of why he trusts it as much as he does. Learn more about his work here.