Anxiety in children and teenagers often does not look the way adults expect it to.
Adults tend to think of anxiety as visible worry — a child expressing that they are nervous, afraid, or stressed. Sometimes that is exactly what happens. Often, it is not.
Anxiety in young people frequently comes out sideways. It comes out as refusal. As physical complaints. As anger. As avoidance that looks like stubbornness. As a child who seems fine at home but falls apart in certain situations. As a teenager who suddenly cannot get to school, or who stops doing things they used to love, or who becomes unreachable.
Understanding this matters because adults who do not recognize the shape of anxiety in kids often respond in ways that make it worse — punishing avoidance without understanding its source, dismissing physical complaints, or reading emotional shutdown as attitude.
What anxiety in young people often looks like
Physical complaints without a medical cause. Stomachaches, headaches, and nausea are extremely common anxiety presentations in children. The complaints are real — the body is responding to anxiety — even when a doctor finds nothing physically wrong.
Avoidance and refusal. Not going to school, avoiding social situations, refusing activities they used to enjoy, insisting on routines and becoming dysregulated when routines are disrupted. Avoidance is usually anxiety, not laziness or defiance.
Clinginess, especially around separations. Younger children in particular may have difficulty separating from caregivers. Older children may be excessively worried about parents’ safety or wellbeing.
Irritability and anger. Anxiety activates the fight-or-flight response. In children and teens, fight often presents more than flight — meaning they may become irritable, reactive, or explosively angry, particularly around anxiety triggers.
Perfectionism and excessive reassurance-seeking. Needing to get everything exactly right. Asking the same questions repeatedly even when already reassured. Catastrophizing about ordinary events.
Difficulty sleeping. Difficulty falling asleep, nightmares, or coming into parents’ beds at night are common in anxious children.
Why it gets missed or misread
Adults often mistake anxiety for disobedience, laziness, or attention-seeking. The child who will not go to school looks defiant. The child who keeps complaining of stomachaches looks like they are trying to get out of things. The teenager who blows up over a small change in plans looks dramatic.
When behavior is the language of distress, misreading the behavior means missing the distress underneath.
What this means for you
If you are seeing patterns in your child that fit this description, you are probably not imagining it. Children do not have the same access to language for what they are feeling that adults do. Their behavior is often the only communication tool they have.
The next article in this set helps you respond in a way that actually helps rather than accidentally making things harder.