My autistic child hits or bites. What do I do?

First, keep everyone safe: separate your child from whoever is being hit or bitten, use fewer words, and don't escalate with punishment. Hitting and biting aren't a character flaw or a sign your child is aggressive by nature. They're usually a signal that something hurts, feels like too much, or can't be said any other way. Once things are calm, your job is to figure out what's underneath it, log the pattern, and get your child's team working on a replacement way to ask for help, a break, or no.

What do I do right in the moment?

Your first move is safety, not correction. If a sibling or another child is nearby, move them out of reach before you do anything else. Get down to your child's level if you can do it without getting hit again, and use as few words as possible: a short, calm "I've got you" or "hands down" goes further than a lecture nobody can process mid-meltdown. Don't add a punishment on top of what's happening; a child who is overwhelmed can't learn a consequence in that moment, and an escalation from you usually escalates them right back. If you've been hurt, it's fine to step back a foot or two while staying present and calm. Once your child is settled, a hug or quiet activity is often more useful than a talk about what happened. The debrief and the plan for next time both come later, when everyone's nervous system has room for it.

What is usually causing the hitting or biting?

It's rarely random. Common triggers include physical pain or illness that your child can't describe, sensory overload from noise, light, or crowding, a demand that feels impossible right then, not being understood when they've tried to communicate another way, or a transition that came without warning. A simple log helps you see the pattern faster than memory alone: jot down the time, the place, what was happening right before, and what your child seemed to want or need afterward. A few lines after each episode, for even a week or two, often reveals a trigger you hadn't noticed, like every incident happening at pickup time or right before a meal. That log is also the most useful thing you can hand your child's team, a teacher, or a pediatrician, because it turns "he hit me again" into information they can actually act on.

How do we teach a replacement way to communicate?

Hitting or biting is doing a job for your child: it's getting them out of something, getting them something, or getting your attention fast. The fix isn't just to stop the behavior, it's to teach a faster, easier way to get the same result, like a card, a sign, a button, or a word for stop, no, help, or break. This works best when your child's whole team, teachers, therapists, and you, agree on the same simple signal and honor it every time it's used. If the pattern is frequent or intense, ask your child's team for a functional behavior assessment: in plain terms, that's a structured look at what happens right before and right after the behavior so the team can teach a replacement that actually meets the same need. You don't have to design this yourself; you just have to ask for it and share your log.

When should I call the pediatrician?

Call sooner rather than later, especially if the hitting or biting is new, sudden, or getting worse. Pain your child can't name is a common and overlooked cause: an ear infection, a toothache, reflux, a headache, or constipation can all show up as behavior instead of words. Poor or disrupted sleep is another frequent driver worth mentioning. Bring your log to the visit; a week of times, places, and what came right before makes it much easier for the pediatrician to spot a medical pattern instead of guessing. This is a medical question, so it belongs with your child's pediatrician or diagnosing clinician, not with a behavior plan alone. If the doctor rules out a physical cause, that's useful information too, and it points the team back toward sensory, communication, or environmental triggers.

How do I protect my other kids, and where do I get support?

Siblings need real protection and real reassurance, not just a rule to stay away. Give them a clear, calm plan for what to do when it starts, like moving to another room, and tell them plainly that their sibling isn't bad and the hitting isn't their fault. Check in with them privately afterward; a scared or embarrassed sibling often stays quiet unless you ask. You also don't have to carry this alone. Your child's team, your pediatrician, a parent support group, or another caregiver who's lived through it can all help you feel less isolated and more equipped. Being scared or embarrassed after a hard moment doesn't mean you're handling it wrong; it means you're human. Reaching out for help, for yourself and for your other kids, is part of taking care of your whole family.

• Move other children to safety first and keep your own words to a minimum until things calm down.
• Keep a simple log for a week or two: the time, the place, and what happened right before each episode.
• Ask your child's team to teach one clear replacement signal, like a card, sign, or word for stop, no, help, or break.
• Call your child's pediatrician to check for pain, ear or dental problems, poor sleep, or constipation.
• Download the free ABCs of Autism guide as your one-source starting point.

Prefer to start with one guide? Download the free ABCs of Autism guide →

Next: How to explain to sibling

• HealthyChildren.org (American Academy of Pediatrics), "Understanding Autism: Information for Families" (current) https://www.healthychildren.org/English/health-issues/conditions/Autism/Pages/Autism-Spectrum-Disorder.aspx
• National Institute of Mental Health, "Autism Spectrum Disorder" (current) https://www.nimh.nih.gov/health/publications/autism-spectrum-disorder
• MedlinePlus Medical Encyclopedia, "Autism spectrum disorder" (current) https://medlineplus.gov/ency/article/001526.htm
• CDC, "Treatment and Intervention for Autism Spectrum Disorder" (current) https://www.cdc.gov/autism/treatment/index.html

Last updated 2026-09-03. This page is general information, not medical advice. Talk with your child's clinician about your specific situation.