Why Is My Autistic Child Having So Many Tantrums? What Parents Should Know

If your autistic child has frequent tantrums, meltdowns, screaming episodes, aggression, self-injury, or other difficult behaviors, you may feel as though you're constantly trying to prevent the next episode.

You've changed routines, avoided certain situations, explained things over and over, worked on communication, tried different strategies, and searched the internet late at night looking for answers, and still, the behavior continues.

Eventually, you may find yourself asking:

Why is this happening? What is my child trying to tell me? Could something be triggering these behaviors?

Those are important questions. Frequent or intense behavioral episodes can have many different contributing factors. Communication difficulties, sensory differences, sleep problems, changes in routine, frustration, hunger, physical discomfort, and other health concerns can all play a role. Sometimes the reason is obvious. Sometimes it isn't.

The goal isn't to assume that every difficult behavior has one particular cause. It is to become better at recognizing what may be happening before, during, and after the behavior so you can start asking better questions.

When the Tantrums Seem to Happen All the Time

Some children have occasional tantrums. For other families, difficult behavior becomes part of everyday life. You may see prolonged crying, screaming, throwing objects, hitting, kicking, biting, head banging, running away, refusing everyday activities, extreme reactions to changes in routine, or difficulty transitioning from one activity to another. You may begin avoiding places because you never know what will happen.

Getting dressed, going to school, taking a bath, eating dinner, leaving the house, going to the grocery store, or simply changing from one activity to another can become a major challenge.

For a parent, it can feel as though everything has become a potential trigger.

Is It Really a "Tantrum"?

One of the first things worth considering is that not every intense behavioral episode means the same thing. A child may become upset because they want something they cannot have. Another child may become overwhelmed by noise, light, touch, crowds, or other sensory input. Your child may not understand what is being asked of them. They may have difficulty transitioning away from something they enjoy. They may be frustrated because they cannot communicate what they need, and sometimes, your child may simply be trying to communicate that something is wrong.

A child who cannot easily say "My stomach hurts," "That's too loud," "I'm scared," "I don't understand," or "I need a break" may communicate that message through behavior instead.

A difficult behavior doesn't necessarily tell you exactly what is wrong.
But it may be giving you information worth paying attention to.

Look for What Happens Before the Behavior

One of the most useful things you can do is look at what was happening immediately before an episode.

• Was your child asked to stop a favorite activity?
  
• Was there a change in routine?
• Was the environment noisy or crowded?
• Was your child hungry, tired, or already overwhelmed?
• Were they being asked to do something difficult?
  
• Was someone touching them?
• Had they slept poorly?
• Were they experiencing constipation or another physical problem?
• Did something happen at the same time of day?

You may eventually discover that behaviors that initially seemed completely random actually have patterns. That doesn't mean every episode will have an obvious trigger, but sometimes the pattern is the clue.

Communication Can Be Part of the Picture

Imagine being unable to explain what you need. You can't tell someone that your stomach hurts. You can't explain that the room is too loud. You can't ask for a different food. You can't tell someone that you don't understand what they want you to do. For a child with significant communication difficulties, that frustration can build quickly.

Communication doesn't necessarily mean spoken language. Your child may communicate through gestures, signs, pictures, communication devices, sounds, facial expressions, or other methods.

If your child has limited or absent speech, you may also want to read Why Isn't My Autistic Child Talking? What Parents Should Know About Speech and Communication.

Finding better ways for your child to communicate can sometimes change what happens during difficult situations

Could Sensory Issues Be Triggering the Behavior?

Many autistic children experience sensory differences.
Sounds may seem unbearably loud. Lights may be overwhelming. Certain textures may be intolerable. Clothing may feel uncomfortable. Crowded environments may become too much.
Even ordinary activities such as haircuts, bathing, tooth brushing, shopping, or going to the doctor can become extremely difficult.
Your child may not be able to explain what is bothering them.
Instead, you may see screaming, refusal, aggression, withdrawal, or another intense reaction.
If a particular behavior repeatedly occurs in the same environment or after the same sensory experience, pay attention to that pattern.
Sometimes the reason isn't obvious until you start looking for it.

Could Poor Sleep Be Making Things Worse?

Sleep can have a major effect on how a child functions during the day.
If your child is waking repeatedly during the night, sleeping very little, waking extremely early, or struggling to fall asleep, you may notice more irritability, difficulty coping, increased activity, or more frequent behavioral episodes the following day.
This can create a difficult cycle:
Poor sleep → difficult day → greater stress → difficult bedtime → poor sleep
If sleep is also a major problem in your household, it deserves attention in its own right.
Read Why Won't My Autistic Child Sleep? Understanding Sleep Problems in Autism if sleep is also a concern in your home.

Could Your Child Be Experiencing Physical Discomfort?

This is an especially important question when your child's behavior changes suddenly or becomes substantially worse.
A child who cannot easily explain physical discomfort may show it through behavior instead.
Depending on your child's situation, things such as constipation, abdominal discomfort, dental problems, illness, pain, reflux, sleep problems, medication effects, or other health concerns may need to be considered.
This doesn't mean that every behavioral problem has a medical cause.
It does mean that a significant change in behavior shouldn't automatically be dismissed as "just autism."
If your child suddenly develops substantially different behavior, particularly when it occurs along with self-injury, significant sleep disruption, loss of skills, pain, illness, or other concerning changes, that change deserves attention.
The goal isn't to assume there is one hidden explanation.
The goal is to avoid overlooking something that may be contributing to your child's distress.

What About Digestion?

Digestive problems can be another part of the picture.
You may notice constipation, diarrhea, abdominal discomfort, reflux, restricted eating, or other digestive concerns.
This can be particularly difficult when your child has limited communication.
Instead of being able to tell you that their stomach hurts, your child may become irritable, restless, withdrawn, or much more likely to have a behavioral episode.
If you notice that your child's behavior consistently changes when digestive problems occur, that is a pattern worth documenting.
It doesn't prove that digestion is causing the behavior.
But it gives you another question to investigate.

If gut health is already a concern, you can continue with Gut Health in Autism and the Gut-Brain Connection: What Parents Should Know.

What If Your Child Has Several Problems at the Same Time?

Sometimes the behavioral problem isn't the only concern.
Your child may also have communication difficulties, sensory sensitivities, sleep problems, restricted eating, digestive problems, developmental delays, frequent illness, nutritional concerns, or other health issues.
When several things are happening at the same time, it's natural to wonder whether they are connected.
You don't have to assume that they all have one cause.
Instead, step back and look at the bigger picture.
What changed first? What problems occur together? What seems to make things better or worse? Are there physical, nutritional, environmental, or other health factors that deserve a closer look?
That kind of investigation can be more useful than trying to explain every behavior in isolation.
If your child has many different health concerns, My Autistic Child Has So Many Health Problems: How Parents Can Look at the Bigger Picture is a natural next step.

Don't Just Ask How to Stop the Behavior

When you're dealing with screaming, aggression, self-injury, or constant meltdowns, your immediate priority may simply be getting through the day.
That's understandable.
But once things are calmer, another question can be useful:
What is my child communicating through this behavior?
Sometimes the answer is frustration.
Sometimes it is sensory overload.
Sometimes it is difficulty communicating.
Sometimes it is lack of sleep.
Sometimes it is a change in routine.
And sometimes there may be physical discomfort or another health issue that your child cannot explain.
Looking beyond the behavior doesn't mean ignoring the behavior.
It means trying to understand the child behind it.

Keep a Record of What You're Seeing

You don't need a complicated behavior-tracking system.
Start with a simple record.
Write down what happened before the episode, what the behavior looked like, how long it lasted, what seemed to help, and what happened afterward.
You can also make note of sleep, meals, bowel movements, illness, changes in routine, medications or supplements, and other significant changes.
Over time, patterns may become easier to see.
You may discover that certain situations repeatedly lead to problems.
You may notice that poor sleep makes everything worse.
You may see a relationship between digestive problems and behavior.
Or you may discover that an episode you thought was completely unpredictable actually follows a consistent pattern.
The purpose isn't to diagnose your child from a notebook.
It's to turn "My child is having constant tantrums" into information you can actually use.

When You're Still Looking for Answers

Sometimes you've already tried the obvious things.
You've worked on communication. You've adjusted routines. You've addressed sleep. You've considered sensory needs. You've worked with therapists and talked with healthcare professionals.
And you're still wondering whether something else might be contributing to your child's difficulties.
That is often where parents begin looking at their child's health more broadly.
Some parents investigate nutrition, gut health, environmental exposures, heavy metals, supplements, and other biomedical approaches.
That doesn't mean every child has the same underlying problem.

It means that when several concerns are occurring together, some parents want to understand all of the areas that might be relevant to their child's health.
If you're new to that subject, start with What Are Biomedical Approaches to Autism? A Parent's Introduction.

Where Do Environmental Factors and Heavy Metals Fit?

Environmental exposures are another area some parents investigate when they are trying to understand their child's overall health.
This can lead to questions about air, water, food, household products, pesticides, building materials, and other potential sources of exposure.
Heavy metals are one specific area of environmental health research, including mercury, lead, arsenic, and cadmium.
Frequent tantrums or meltdowns do not by themselves establish heavy-metal exposure.
But if your child has multiple ongoing health concerns and you have a reason to investigate environmental exposure, understanding potential sources and how exposure is evaluated can help you ask better questions.
Our article Heavy Metals Explained: Sources, Exposure & What Parents Should Know provides an introduction to the subject.

What Should Parents Do Next?

You don't have to figure everything out at once.
Start by getting specific about what you're seeing.
Look at what happens before the behavior. Pay attention to communication, sensory triggers, sleep, digestion, physical discomfort, changes in routine, and other patterns.
Document significant changes rather than relying on memory.
And if your child's behavior has changed dramatically or is accompanied by loss of skills, self-injury, significant sleep disruption, pain, illness, or other concerning symptoms, don't simply assume that the change is part of autism.
Don't ignore the behavior. Investigate what your child may be trying to tell you.
Sometimes the next answer isn't found by asking, "How do I stop the tantrum?"
It starts with asking:
"What is happening with my child that I haven't understood yet?"

Continue Exploring

If behavior brought you here, you can follow the questions that are most relevant to your child.

If communication is a major concern, read Why Isn't My Autistic Child Talking? What Parents Should Know About Speech and Communication.

If sleep is also a problem, read Why Won't My Autistic Child Sleep? Understanding Sleep Problems in Autism.

If digestive problems are part of the picture, explore Gut Health in Autism and the Gut-Brain Connection.

If your child has multiple health concerns, continue with My Autistic Child Has So Many Health Problems: How Parents Can Look at the Bigger Picture.

And if you're beginning to investigate the broader biomedical approach, start with What Are Biomedical Approaches to Autism? A Parent's Introduction.

Fight Autism and Win

Sometimes one question leads to another.
A question about tantrums may lead to questions about communication, sleep, digestion, nutrition, sensory issues, environmental exposures, or other aspects of your child's health.
That's part of why we created Fight Autism and Win.
The goal is to give parents a place to explore these subjects in a more organized way instead of having to piece everything together from hundreds of unrelated sources.
Start with the question that's in front of you. Then follow the next question.
Learn more about Fight Autism and Win