Your kid used to be funny. Now they shrug at everything.
The shower's running for forty minutes. Homework sits open and untouched. You ask one question and get an eye roll that feels personal. Friends stopped coming over. The pediatrician says it's "just teenage stuff," and something about that answer doesn't sit right with you.
You're probably not wrong.
Trauma in teenagers can show up in the body before it shows up in words. It can look like chronic stomachaches, exhaustion that doesn't lift, shutting down after small stressors, and what many adults read as attitude. These changes have several possible causes, including stress, depression, medical issues and trauma. A struggling teen often can't explain what's happening, which is one reason an assessment helps.
Here's what we miss. When a teenager has been through something overwhelming, whether a loss, a bad relationship, a frightening event, ongoing chronic stress, bullying, an assault, or household instability, they may protect themselves by pulling away and going quiet.
Some trauma responses look like freezing or shutting down, alongside the better-known fight or flight. According to the National Center for PTSD, teen trauma responses often involve withdrawal, numbness, and physical symptoms that look unrelated to anything specific.
What that looks like in your living room:
Any one of these can be ordinary teen behavior. A cluster that lasts for weeks is worth a closer look.
Trauma frequently expresses itself physically in adolescents. A 2018 study of adolescents exposed to traumatic experiences found high rates of somatic symptoms across body systems, including gastrointestinal, neurological, and musculoskeletal, even in teens who didn't meet full post-traumatic stress disorder (PTSD) criteria. That shows a link across a group of teens. It can't tell you the cause of one teen's stomachaches, which is why a medical checkup comes first.
The pattern most parents miss:
Chronic stomach issues with no clear medical cause. Multiple pediatrician visits. Maybe a GI workup. Everything comes back clean. The pain is real, and stress can be part of the picture. Keep the pediatrician in the loop while you look into it.
Headaches that have a pattern. Sunday nights. Right before a specific class. The morning after a fight at home. The body is tracking something the teen hasn't named.
Sleep that's broken in a specific way. They fall asleep fine. Then they wake at 3am wired, or sleep ten hours and wake exhausted. A body that stays on alert has a harder time getting deep rest.
Startle responses out of proportion. Door slams. A hand on their shoulder. A loud voice. Their body jumps before their face does.
The flat affect. Sometimes this is depression. Sometimes it's hypoarousal, a shutdown state where the nervous system has lowered its volume on everything, including connection.
This is the part that breaks parents' hearts when they finally understand it.
When a teenager is overwhelmed, finding words gets harder. Stress makes it tough to think clearly, plan, or explain feelings, especially in the middle of a tense moment. Many teens genuinely can't say what's wrong.
What looks like teen attitude (the eye-rolling, the shutdown, the "whatever") can be a sign of overwhelm. Punishing it usually pushes a struggling kid further away.
So when you ask "What's wrong with you?" and they say "Nothing," they may not be lying. They may not have access to it.
And when you escalate, whether by yelling, taking the phone, or grounding, a stressed teen often experiences it as more threat and shuts down further. They stare at the floor. They don't fight back. Parents read this as defiance and turn the heat up further.
In that moment you might see a flat face, a quiet voice, a slumped body. A teen who shuts down under stress usually isn't doing it to hurt you.
Most parents wait too long to consider trauma because they don't think anything "bad enough" has happened.
Trauma gets measured by how a specific nervous system, at a specific developmental moment, processed an overwhelming experience. Event severity is a poor guide. The American Academy of Child and Adolescent Psychiatry includes among potential trauma triggers: serious accidents, exposure to violence in home or community, the death of a loved one, divorce, illness, bullying, and assault.
Some experiences that often qualify but get dismissed:
The body decides what's traumatic. It doesn't take votes from adults about whether something should have been a big deal.
Many teens recover well after hard experiences, especially with steady support at home. When symptoms linger, here is what we often see.
Somatic symptoms can become chronic. Sleep problems can settle in. Schoolwork can slip, because it's hard to focus while the body is on alert. Some teens turn to substances to cope. Relationships can narrow.
The teen may also begin to identify with the trauma response itself. "I'm just a moody person" is how a symptom becomes a personality.
Unaddressed trauma can also carry into early adulthood as anxiety, depression, chronic pain, or relationship patterns that echo the original hurt. Getting support earlier can make a real difference.
Treatment for adolescent trauma in our trauma therapy practice in Plano, Texas doesn't start with talking about what happened. That matters, because most parents and many teens assume therapy means immediately rehashing the worst thing.
It starts with the nervous system.
The first phase of trauma work is teaching the body that it's safe enough now to come out of shutdown. That means somatic awareness, simple regulation skills, and tools the teen can actually use when the freeze hits. This early work pays attention to what the body is holding, along with the story in the teen's head.
Once the nervous system has more capacity, we can begin processing what the teen actually went through. Sometimes that's trauma-focused cognitive behavioral therapy (TF-CBT), where the teen builds a coherent story of the event with support. For teens who find it hard to put the experience into words, creative approaches like sandtray can carry part of the work. Often it's a combination. If you're weighing the options, we've mapped the four families of trauma therapy and how to choose between them.
What changes when treatment works: the somatic symptoms loosen first. The stomachaches lighten. Sleep improves. Then connection comes back, in eye contact, real conversation, a laugh that sounds like the kid you remember.
Timelines vary with the trauma history. Most families notice nervous system shifts before they notice mood shifts, and meaningful symptom reduction generally takes several months of consistent work. Complex or repeated trauma takes longer. With the right approach, most teens get better.
Trauma in teenagers often looks like withdrawal, irritability, shutting down, chronic physical symptoms such as stomachaches, headaches, and fatigue, sleep disruption, sudden academic decline, and changes in friendships or interests. Many parents mistake these signs for typical teenage behavior. Trauma symptoms tend to be more intense, longer-lasting, and clustered together across multiple areas of life.
Yes. Adolescent trauma frequently comes with somatic symptoms including chronic stomach pain, headaches, muscle tension, fatigue, sleep disturbances, and unexplained physical complaints. These are real physical experiences, and stress and trauma can be part of the cause. Because physical symptoms have many possible sources, start with a pediatrician and add a mental health assessment when symptoms persist or get in the way of daily life.
Typical adolescent moodiness comes and goes, responds to connection, and doesn't usually involve physical symptoms or persistent withdrawal. Trauma symptoms tend to be more intense, last longer, occur across multiple settings, and often include physical symptoms with no clear medical cause. If symptoms are getting in the way of school, sleep or relationships, or your gut says something is off, a professional assessment is worth it. You don't need to wait a set amount of time.
No. Pressuring a teen to verbalize trauma before their nervous system is regulated often increases shutdown. The most helpful thing parents can do is stay present, stay non-reactive when shutdown happens, and seek a trauma-trained therapist. The therapist's job is to create the safety that lets the teen approach the experience at the right pace, which is rarely the parent's pace.
It depends on the trauma history. Most teens notice nervous system changes before they notice mood changes, and meaningful symptom reduction generally takes several months of consistent work. Complex trauma or multiple traumatic events typically take longer. Progress isn't linear, and consistency matters more than speed.
Don't wait if any of these apply:
If you or your teen is in crisis:
Layers Counseling Specialists offers trauma-informed therapy for adolescents across the DFW area, including Plano, Frisco, and families in Allen. Our approach combines somatic and evidence-based modalities, including TF-CBT and trauma-informed, nervous-system-aware care, calibrated to where your teen actually is in their nervous system rather than where a textbook says they should be. Isaac Rosas, LMSW leads much of our teen trauma work, bringing trauma-informed care in English and Spanish.
If your teen has been struggling and you're tired of being told it's just a phase, we'd be glad to talk with you about what's going on.
Written by Karla Pineda, LPC, Executive Director at Layers Counseling Specialists. Karla is an International OCD Foundation (IOCDF) registered exposure and response prevention (ERP) therapist with training in Rumination-Focused ERP and in Advanced accelerated resolution therapy (ART) for trauma processing.
Last reviewed: October 2026
This article is for educational purposes and is not a substitute for professional mental health care. If you or someone you know is in crisis, call or text 988 (Suicide & Crisis Lifeline) or text HOME to 741741.
Our Plano therapists specialize in OCD, anxiety, ADHD, autism, ARFID and trauma, in person or online anywhere in Texas. Every clinician starts with a free 15-minute consultation, so you can see whether it feels like a fit before you commit.
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