Signs of Anxiety in Children: What Childhood Anxiety Can Look Like
How to recognize anxiety in children—including the signs that are easy to miss.
When parents think about anxiety in children, they may picture a child who is visibly worried, frequently says they are scared, or refuses to do things that make them nervous.
But childhood anxiety doesn't always look like fear.
Sometimes it looks like perfectionism. Sometimes it looks like stomachaches, bedtime struggles, constant reassurance seeking, or endless “what if” questions. Sometimes it looks like a child who seems completely fine at school but has frequent meltdowns the moment they get home.
And sometimes, anxiety looks like a child who is high-achieving, responsible, helpful, and easy to manage, but also reluctant to ever talk about feelings—because they are working incredibly hard to keep their anxiety under control.
Understanding the signs of anxiety in children can help parents recognize what may be happening beneath the behavior and know when additional support may be helpful.
I often hear from parents that they aren’t sure what’s going on, but they know something is—and I think this intuition is important to listen to, because you know your child best.
What Is Anxiety in Children?
Anxiety is a normal human response to perceived threat, uncertainty, or danger. A certain amount of anxiety is expected during childhood and can even be helpful. It can alert children to potential problems, motivate them to prepare, and help them respond to situations that require caution.
The concern arises when anxiety becomes persistent, excessive, difficult to control, or disruptive to a child's daily life.
The Diagnostic and Statistical Manual of Mental Disorders (DSM-5-TR) includes several anxiety disorders that can occur during childhood and adolescence, including generalized anxiety disorder, separation anxiety disorder, specific phobia, social anxiety disorder, panic disorder, and others.
Each diagnosis has its own specific criteria. Generally, clinicians consider factors such as:
The intensity and frequency of anxiety
How long symptoms have been present
Whether the anxiety is developmentally appropriate
How difficult it is for the child to control or manage the worry
Whether anxiety interferes with school, friendships, family life, sleep, activities, or other areas of functioning
Whether another condition or circumstance better explains the symptoms
A child does not need to have a diagnosed anxiety disorder to be experiencing meaningful anxiety or benefit from support—one benefit of working outside the insurance system is that children don’t need to be labeled with a diagnosis or necessarily meet medical criteria established by insurance companies to receive support.
Common Signs of Anxiety in Children
Anxiety can affect a child's thoughts, emotions, body, behavior, relationships, sleep, and ability to participate in everyday activities.
Here are some of the signs I most commonly see and hear about from parents.
1. Difficulty Tolerating Uncertainty and the Unknown
One of the biggest themes I see in anxious children is a low tolerance for uncertainty.
They may repeatedly ask things like:
“What is going to happen?”
“What if something goes wrong?”
“Who is going to be there?”
“How long will we be there?”
“What happens after that?”
“Are you sure?”
“What if something bad happens?”
Even when a parent answers the question, another question may immediately follow.
This isn't necessarily a child trying to be difficult or seeking attention. Their brain may be trying to eliminate uncertainty because knowing what will happen feels safer than not knowing. Over time, this reassurance-seeking can lead to children feeling like they can’t tolerate the anxiety itself, leading to continuously seeking answers, even when it isn’t possible.
Unfortunately, certainty is impossible to achieve all the time. A large part of anxiety treatment is helping children gradually build the capacity to experience uncertainty without needing to eliminate it—the goal isn’t necessarily to eliminate the anxiety, but to increase children’s capacity for it.
2. Difficulty With Transitions and Changes in Routine
Children with anxiety may become particularly distressed when plans change.
A change in schedule, substitute teacher, unexpected activity, canceled plans, or even a different route to school can lead to a surprisingly big reaction.
Transitions contain a lot of unknowns:
What is happening?
What will happen next?
What will be expected of me?
Will I be okay?
How will I feel? Will I be able to handle that feeling?
For some children, that uncertainty can activate their nervous system before they have consciously identified what they're worried about.
This can look like:
Meltdowns around transitions
Excessive questions before an activity
Difficulty leaving one activity to start another
Distress when plans change
Needing extensive preparation
Becoming irritable or overwhelmed when routines shift
3. Avoidance
Avoidance is one of the most recognizable signs of anxiety, but it can take many forms.
A child might avoid:
Sleeping alone
Going to school (this could look like outright school refusal or frequent somatic complaints, such as stomachaches or headaches before school, without clear medical causes)
Talking to unfamiliar people
Participating in activities
Trying something new
Making mistakes
Being away from a parent
Situations involving germs, animals, illness, heights, or other fears
Social situations
Difficult conversations
Avoidance can provide immediate relief.
The problem is that avoidance can also teach the nervous system: “I escaped, so I must have been unsafe.” Over time, this can make the feared situation feel even more threatening and strengthen the anxiety response.
4. Constant “What If?” Questions
Some anxious children seem to have an endless supply of hypothetical questions.
“What if I get sick?”
“What if Mom doesn't come back?”
“What if I get the answer wrong?”
“What if everyone laughs at me?”
“What if something bad happens?”
These questions can be an attempt to solve anxiety cognitively.
The child may believe that if they can think through every possible scenario, they can prevent something bad from happening.
This can create a cycle of worry → question → reassurance → temporary relief → more worry.
5. Reassurance Seeking
Anxious children may repeatedly seek reassurance from parents, teachers, or other trusted adults.
They might ask:
“Are you sure?”
“Did I do it right?”
“Are you mad at me?”
“Do you think I'll be okay?”
“Is this going to be okay?”
“Do you promise?”
Reassurance can be comforting, but repeated reassurance seeking can become part of the anxiety cycle.
The goal isn't to stop providing reassurance or to become emotionally unavailable or invalidating. Instead, therapy can help children gradually develop more internal confidence and learn that they can handle uncertainty even when they don't have a guarantee that everything will be okay.
6. Perfectionism
Perfectionism is another sign that can easily be missed because it often leads to high achievement.
A child may:
Become extremely upset over mistakes
Erase and restart work repeatedly
Avoid activities they aren't immediately good at
Spend excessive amounts of time on assignments
Become distressed by criticism
Refuse to turn in work they believe isn't perfect
Have difficulty making decisions because they're afraid of choosing incorrectly
Underneath perfectionism, there may be beliefs such as:
“If I make a mistake, something bad will happen.”
“I have to get this right.”
“People won't like me if I mess up.”
“My performance determines whether I'm good enough.”
Perfectionism can create the appearance of motivation and achievement while masking significant anxiety. Underneath it all, a child may be deeply afraid of a shame response and attempting to avoid that.
7. People-Pleasing and Fear of Disappointing Others
Some anxious children become exceptionally agreeable.
They may:
Have difficulty saying no
Rarely express disagreement
Worry excessively about disappointing adults
Apologize frequently
Take responsibility for other people's feelings
Try very hard to keep everyone happy
Become distressed when someone is upset with them
Adults may describe these children as mature, easy, helpful, or incredibly responsible.
Those qualities can certainly be genuine strengths.
But when a child's behavior is primarily driven by fear of conflict, rejection, criticism, or disappointing others, there may be anxiety underneath the surface.
8. Avoiding Conflict
Some children become highly uncomfortable with interpersonal conflict.
They may shut down during disagreements, immediately apologize, change their opinions, or avoid telling others what they actually think or need.
This can be particularly noticeable in friendships during the pre-teen and teen years.
A child may prioritize keeping the peace over expressing their own needs. Over time, this can lead to children becoming disconnected from themselves and having difficulty advocating for themselves when it’s needed.
9. School Refusal and Separation Anxiety
Anxiety can become particularly visible around school or when separating from caregivers.
A child may:
Beg to stay home
Cry before school
Experience stomachaches or headaches on school mornings
Have difficulty separating from a parent
Frequently visit the nurse
Become distressed the night before school
Avoid specific classes or activities
Experience intense distress around drop-off
Separation anxiety can also occur outside of school, including difficulty sleeping away from parents, fear that something will happen to a caregiver, or excessive distress when separated.
School refusal is not simply “not wanting to go to school.” It can be a significant manifestation of anxiety and deserves curiosity rather than shame.
10. Sleep Changes, Nightmares, or Night Terrors
Bedtime and sleep can be areas highly impacted by anxiety.
Children experiencing anxiety may have:
Difficulty falling asleep
Difficulty staying asleep
Frequent nighttime reassurance seeking
Fear of sleeping alone
Nightmares
Nighttime worries
Increased need for a parent at bedtime
Night terrors are different from nightmares and can have several causes, so they aren't automatically a sign of anxiety. However, significant changes in sleep are worth discussing with a pediatrician or mental health professional.
11. Changes in Eating Patterns
Anxiety can impact appetite and eating patterns.
Some children experience decreased appetite when anxious. Others may eat more when experiencing stress.
You might notice:
Changes in appetite
Complaints of feeling sick before meals
Difficulty eating in certain environments
Increased food-related worries
Avoidance of eating because of fear of becoming sick or experiencing another uncomfortable sensation
Changes in eating can have many possible causes, so persistent or significant changes should be evaluated by a pediatrician.
12. Racing Thoughts and Overthinking
An anxious child's mind may feel like it is constantly running.
They may:
Replay conversations
Ruminate about the same fears and worries
Think through the worst-case scenario or “what if?” questions
Worry about things that happened days ago
Anticipate everything that could go wrong
Have difficulty turning their thoughts off
Ask for repeated clarification
Spend significant amounts of time thinking through decisions
Parents may hear:
“I can't stop thinking about it.”
Or they may simply notice that their child seems unable to let something go or notice that their child’s focus has suddenly been impacted.
13. Physical Symptoms With No Clear Medical Explanation
Children don't always experience anxiety as a thought. They can experience it in their bodies.
Common physical complaints can include:
Stomachaches
Headaches
Nausea
Muscle tension
Fatigue
Racing heart
Shakiness
Feeling hot or sweaty
Shortness of breath
Frequent need to use the bathroom
When a child repeatedly experiences physical symptoms, especially around particular situations, anxiety may be one contributing factor.
Physical symptoms should never automatically be assumed to be psychological. Persistent or concerning symptoms should be evaluated by a pediatrician to rule out medical causes.
14. Emotional Meltdowns and Big Reactions
Anxiety doesn't always look worried.
It can look like:
Irritability
Anger
Crying
Yelling
Meltdowns
Shutdowns
Difficulty recovering after something goes wrong
When a child's nervous system is already operating near its capacity, a seemingly small event can become the thing that pushes them beyond what they can manage.
This is one reason anxiety can sometimes be mistaken for a behavior problem.
When Anxiety Looks Like “A Great Kid”
One of the most important things for parents and professionals to understand is that anxious children aren't always visibly anxious.
Some children become incredibly good at masking and holding themselves together.
They may:
Get excellent grades
Follow classroom rules
Avoid asking for help
Rarely cause problems
Be extremely responsible
Work hard to please adults
Appear mature beyond their years
Have lots of friends
Rarely show distress at school
And then they come home and fall apart. Or, shut down when big emotions come up and avoid talking about them with parents.
Parents sometimes describe this as: “It’s like they’re a different kid at home versus at school” or “I can tell something is bothering my kid, but they won’t talk to me about it. I can’t reach them.”
This can happen because school requires children to manage an enormous amount of information and stimulation: academic expectations, social dynamics, transitions, sensory input, rules, uncertainty, and emotional demands.
A child may spend the entire day holding it together, using significant energy to manage their internal experience.
When they get home to a safe and familiar environment, that capacity may be gone.
The resulting meltdown or shutdown doesn't necessarily mean that home is the problem.
Sometimes it means home is where they finally feel safe enough to let go.
This pattern can be particularly common among children who are highly sensitive, high-achieving, perfectionistic, or neurodivergent.
Anxiety and Neurodivergence
Anxiety and neurodivergence frequently overlap, but anxiety can look different in neurodivergent children.
Children with ADHD, autism, or other neurodivergent profiles may experience anxiety alongside:
Sensory overwhelm
Difficulty with transitions
Executive functioning challenges
Social uncertainty
Masking
Difficulty identifying internal sensations or emotions
Increased distress around unpredictability
Differences in communication
For example, a child who becomes extremely distressed when the schedule changes may be experiencing anxiety about the unknown—but they may also be experiencing genuine difficulty processing an unexpected transition.
Understanding the child's whole nervous system and neurodevelopmental profile matters.
The goal isn't to make the child tolerate everything that overwhelms them. It's to understand what their system is communicating and determine what support, accommodation, skill-building, and gradual growth are appropriate.
What Parents Can Do
If you're noticing several of these signs, you don't need to immediately figure out whether your child has an anxiety disorder.
Start with curiosity.
Notice patterns.
Ask:
When does anxiety seem to show up?
What happens immediately before it?
Are there particular transitions, people, places, or expectations that make things harder?
Does anxiety look different at school and home?
What helps your child recover?
Is your child avoiding activities they would otherwise enjoy?
Validate the feeling without reinforcing the fear.
You can acknowledge: “I can tell this feels really scary” without necessarily communicating: “You're right. We need to make sure nothing bad could happen.”
Children benefit from learning that uncomfortable feelings can be tolerated and that they have the capacity to handle uncertainty.
Increase predictability when appropriate.
For children who struggle with uncertainty, knowing what to expect can be regulating.
Visual schedules, transition warnings, clear expectations, and predictable routines can all help.
At the same time, children also need opportunities to gradually experience manageable uncertainty so that flexibility can grow.
Look beyond the behavior.
Instead of only asking: “How do I get my child to stop doing this?”
Try asking:
“What is this behavior communicating?”
A meltdown, avoidance, perfectionism, or repeated reassurance seeking may be telling you something important about your child's internal experience.
When Should My Child See a Therapist for Anxiety?
Consider seeking professional support when anxiety is:
Persistent or increasing
Interfering with school or home functioning
Affecting friendships
Disrupting sleep
Affecting eating
Limiting activities
Leading to significant avoidance
Creating frequent family conflict
Causing significant physical complaints
Preventing your child from doing things they want or need to do
Creating significant distress for your child or family
You don't have to wait until anxiety becomes severe before reaching out.
Therapy can also be helpful when parents simply feel stuck, confused, or unsure how to respond.
How I Work With Children Experiencing Anxiety
My work with anxious children is grounded in Synergetic Play Therapy, nervous-system-informed care, and a neurodivergent-affirming approach.
I don't view anxiety as something a child simply needs to “get over” or something that we need to eliminate entirely.
Instead, I want to understand what their anxiety is communicating, what is happening underneath the behavior, and support children in increasing their capacity for uncertainty and uncomfortable emotions, leading to long-term resilience.
For younger children, play provides a developmentally appropriate way to process experiences and express emotions that may be difficult to put into words. Through play, creative expression, and relationship, children can explore emotions, practice regulation, and build confidence in their ability to navigate difficult experiences.
In particular, Synergetic Play Therapy allows children a safe place to move closer to what they have been avoiding or what has felt scary—this allows children to integrate these feelings and experiences so they no longer feel stuck.
Together in sessions, we’re increasing awareness so children better understand their own emotions and reactions, practicing regulation strategies, and creating new patterns in children’s nervous systems—over time, children feel more confident in facing their anxiety head-on rather than defaulting to avoidance or reassurance-seeking.
Throughout the process, I work closely with parents as well.
You are an essential part of your child's support system, and understanding what is happening beneath the anxiety can make it easier to respond with confidence and connection.
Each session ends with a parent coaching meeting so we can discuss themes emerging in sessions, your child’s progress, and individualized strategies that could be helpful at home or at school. My biggest goal is for you to understand your child better so responding to them and supporting them feels more intuitive again.
Anxiety Is Not Your Child
Anxiety may be part of your child's experience, but it isn't their identity.
With appropriate support, children can learn to:
Understand their anxiety
Recognize how anxiety shows up in their bodies
Build tolerance for uncertainty
Reduce avoidance
Develop effective regulation strategies
Navigate mistakes and imperfection
Communicate their needs
Build confidence and self-trust
Approach challenges with greater flexibility
The goal isn't for your child to never feel anxious. Anxiety is a normal human emotion, and eliminating it completely isn't realistic.
The goal is for your child to learn:
“I can feel anxious and still be okay.”
“I don't have to know exactly what will happen to handle what comes next.”
“I can make mistakes and recover.”
“I can feel uncomfortable without letting anxiety make all of my decisions.”
And perhaps most importantly:
“I can trust myself to handle hard things.”
If you're noticing signs of anxiety in your child and aren't sure what they mean or how to help, you don't have to figure it out alone. I offer a free 15-minute parent consultation for families considering therapy in Centennial, CO, and the surrounding South Denver communities—click the button below to schedule your call today.