When I first learned about PDA (Pathological Demand Avoidance or as I prefer, Pervasive Drive for Autonomy), I learned all about what an externalized profile of PDA looks like. It was my lightbulb moment – I immediately knew it was my son. He refused every request, argued over the smallest demand, threw every meal I put in front of him at the dinner table and exploded when he felt pressured. Those outward expressions can be part of PDA, but they’re not the whole story. A full year into our PDA journey of accommodating him, we started digging deeper about the lesser known profile of Internalized PDA, and the second light bulb moment came – his twin brother was internalized PDA, and so was I.
Many PDA individuals fly under the radar much longer because their PDA doesn’t look like defiance. Instead, it hides behind quiet compliance, high masking, fawning, perfectionism, and often withdrawal. As Sally Cat, an adult PDAer and author, explains: “Internalized PDA is often completely missed because our meltdowns are concealed and demands tend to be avoided subtly, and we slip below the radar.” Understanding both externalized and internalized presentations of PDA helps parents and professionals recognize the full spectrum of how this profile can show up and respond in ways that truly support them.
The Core of PDA: Anxiety and Autonomy
PDA is characterized by an extreme need for autonomy, equal status and control, driven by anxiety. Everyday demands—like getting dressed, brushing teeth, or starting schoolwork—can trigger a survival-level threat response in a PDAer’s nervous system.
It’s not about stubbornness or willfulness; it’s about safety. The child’s brain interprets demands as a loss of control/status, and the sympathetic nervous system reacts as if danger is near. What happens next depends on how that threat response expresses itself, through outward fight energy (externalized) or inward freeze/fawn patterns (internalized).
Externalized vs. Internalized PDA: Two Faces of the Same Experience
Externalized PDA looks more visible. These individuals express their distress outwardly. This could be through shouting, refusal, aggression, or controlling behaviors. They have an intrinsic need for equity amongst people. In children, they might say “no” loudly and often, negotiate endlessly, engage in aggressive behavior when they feel threatened, and have much more severe meltdowns. In externalized PDA adults, you may not see as much physical aggression, but more verbal aggression, passive aggression, and an intense need to be “right”. Their “fight”response is right on the surface.
Internalized PDA looks very different from the outside. We internalize our distress, masking our anxiety through compliance, fawning/people-pleasing, or perfectionism. SallyCat notes that some PDAers cope by “masking”, maintaining a calm appearance or compliance outwardly, while deep anxiety or exhaustion builds internally. This may include behaviors such as fawning (putting others’ needs first), suppression of strong emotions, or even situational mutism. This resonates deeply with me.
Internalizers may withdraw, freeze, or appear “too good.” Teachers might describe them as model students, but meanwhile at home they may collapse from exhaustion or have explosive outbursts once they feel safe enough to let their guard down. Our fear response turns inward, but it’s important to note, it’s the same intense anxiety driving it. I was so masked and internalized my whole life, that when I was finally diagnosed with Generalized Anxiety Disorder in my 40s, I was in shock. I had no idea I even had anxiety. It wasn’t until I started telling my closest friends about the diagnosis that they all admitted they were shocked I didn’t know -and they all felt like I had more anxiety than anyone they’d ever met.
While internalized PDA and externalized PDA look so different outwardly, it’s so important to know that both profiles share the same root: an instinctive need to preserve autonomy and safety in the face of perceived demands. One pushes back; the other hides.
Recognizing the Differences in Daily Life
Externalized PDA may look like:
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- Loud, visible meltdowns when expectations are placed.
- Frequent use of “no,” even for preferred activities.
- Attempts to control others or situations (“I’ll only do it if you do it my way”).
- Strong need to lead games or change the rules.
- Aggression or destruction when feeling trapped.
Internalized PDA may look like:
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- Over-compliance that hides distress (“Sure, I can do that!” but later shuts down).
- Anxiety, stomachaches, or fatigue around transitions.
- Masking emotions or avoiding attention.
- Meltdowns only at home or in private.
- Self-blame or perfectionism (For me this feels like -“It only feels safe if I do it perfectly”).
Many PDAers move between these states—externalizing in some environments and internalizing in others. A child who feels safe at home might express PDA more outwardly, while one who feels pressure at school may suppress it to survive the day.
Why Internalized PDA Is So Often Missed
Internalized PDA can be particularly difficult to spot because it hides behind social masking. We often appear polite, helpful, and eager to please. We may comply on the outside while feeling trapped on the inside, and often without even knowing we feel trapped, and pushing through it. Over time, this internal stress can build into anxiety disorders, depression, or intense burnout.
It wasn’t until our own internalized PDA child was in burnout that we realized what was going on. He was a “perfect angel” in school all day, but by the time he got home, he would fight us tooth and nail, wouldn’t do the things that used to be fun for him, he was threatening to break the things he loved the most (instead of hurting us or others things like our externalized child did in burnout), and his daily living skills were majorly regressing.
As Sally Cat and contributors in her book “PDA by PDAers” describe, internalized PDAers may appear well-behaved or resilient to others, all while carrying high internal stress. Internalized PDA strategies (masking, fawning, over-compliance) are adaptive but exhausting.
This is why understanding internalized PDA is so vital. A child who seems fine may actually be living in constant threat mode, trying to meet others’ expectations while feeling utterly powerless.
Support Strategies for Each Profile
Supporting Externalized PDA
- Start with safety, not compliance. Before any learning or cooperation can happen, the child must feel safe and understood.
- Reduce direct demands. Use invitational or indirect language (“It’s freezing outside today” instead of “Put on your coat”).
- In stressful moments, less is more. Don’t talk unless spoken to if you don’t have to.
- Offer choices and autonomy. Build in meaningful control: “Would you like pancakes or toast for breakfast?”
- Regulate together. Co-regulation, staying calm, staying lower than them physically, letting them know they are safe with you, etc. all helps reset the nervous system.
- Focus on repair after rupture. PDAers often carry shame after explosive moments. Gentle reconnection teaches safety.
- Never shame them for their actions during a meltdown. I can assure you they are not proud of their actions done when they were in their fight response.
Supporting Internalized PDA
- Look beneath the surface. Notice subtle cues of stress, tight body language, restlessness, chewing on things, flat affect, sudden fatigue.
- Create space for “no.” Let children practice expressing their boundaries safely without fear of disappointing you.
- Encourage authenticity over compliance. Praise honesty and self-advocacy (“Thank you for telling me that feels hard”) rather than quiet compliance.
- Build recovery time. Masking takes a toll. Ensure plenty of unstructured, low-demand time for decompression.
- While Externalizers often need their co-regulator around at all times, Internalizers may need more time alone. Allow for that time alone while letting them know you’re there when they need you.
- Model self-compassion. Internalized PDAers often hold themselves to impossible standards. Show that mistakes and rest are safe.
- Don’t shame them. Actions said or done in a parasympathetic response were not done with a “thinking brain.”
Bridging Both: Seeing the Whole Child
No PDA individual is purely internalized or externalized. Most fluctuate depending on stress, environment, and sense of safety. What matters most is not how the PDA shows up, but why. Look for the why, and make accommodations as possible within your own lifestyle. Build trust, model self-compassion, show them compassion, and let them know they are unconditionally loved.
Shift your mindset – every behavior, avoidance, refusal, meltdown, or shutdown is a form of communication. When we view it through the lens of safety and regulation, not defiance, we can meet the need instead of fighting the behavior.
Key Takeaways
The antidote for both externalized and internalized PDA is connection, safety, and autonomy.
Whether PDA shows up as loud resistance or quiet withdrawal, the behavior itself is not the problem, it’s the signal.
When parents and professionals shift from seeing behavior as defiance to seeing it as communication, the entire relationship changes. Instead of asking, “How do I stop this behavior?” we begin to ask, “What is this behavior telling me about the child’s stress and sense of safety?” That question opens the door to connection, empathy, and more effective support.
In PDA, behavior is a symptom of an overwhelmed nervous system, not deliberate opposition. Every “no,” every shutdown, every meltdown communicates one thing: I don’t feel safe.
PDAers, whether loud or quiet, thrive when adults see beneath the surface. When safety and autonomy come first, connection follows and so does learning, growth, and genuine cooperation.
When we understand the two faces of PDA, we begin to see what both are really saying: “Please help me feel safe.”
References:
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Sally Cat. PDA by PDAers. Bookneurd Press.
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Sally Cat. “Internalized PDA.” PDA North America Resource Library.
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bookneurd.com – Exploring Pathological Demand Avoidance with Sally Cat
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