Introduction
If your child is hitting, biting, or otherwise injuring themselves, please know first: this can be a sign of significant distress, and it deserves serious attention, not just behavioral redirection. What you're observing isn't a parenting failure on your part or a "bad behavior" on theirs. It's often communication or distress from a child who doesn't have other ways to convey what's happening to them at that moment.
This piece is written to help families understand self-injurious behavior (SIB), what's often driving it, what to do safely in the moment, when it's an emergency, and how to access the kind of professional support this issue genuinely requires. It is not a substitute for professional evaluation. For most situations involving self-injury, the most useful next step is contacting your pediatrician and behavioral health team, not implementing strategies from a blog post.
When This Is an Emergency
Some forms of self-injurious behavior need immediate medical attention.
Call 911 or go to the emergency department if your child:
- Has lost consciousness, even briefly
- Has signs of concussion (vomiting, confusion, unequal pupil sizes, severe headache after head-banging)
- Has bleeding that won't stop
- Has broken skin from biting in areas at risk for infection
- Has injured an eye
- Has been hitting their head against hard surfaces with enough force to cause visible swelling, especially if increasing in intensity
- Is in such severe distress that you cannot safely manage the situation at home
If your child's self-injurious behavior is escalating in frequency or severity, or has been ongoing without improvement, contacting your pediatrician within the next 1-2 days is appropriate, even if no single incident has been an emergency.
If you are in crisis, the 988 Suicide and Crisis Lifeline (call or text 988) is a resource for parents and caregivers, not just for the child. Caring for a child during SIB episodes is genuinely traumatic, and your well-being matters too.
Medical Causes Should Be Ruled Out First
This is the most important point in this entire article: new or escalating self-injury in an autistic child can be a sign that something physically painful is happening. Before any behavioral interpretation, medical causes should be evaluated, especially if the SIB is new or has changed in pattern.
Pain that can drive self-injury, often hitting the body part that hurts, includes:
- Ear infections (a child hitting their head or ears)
- Dental pain or tooth infections (hitting the face, jaw, or head)
- Headaches or migraines (head-banging or hitting the head)
- Sinus infections or allergies (hitting the face or head)
- GI pain, reflux, constipation, food intolerances (hitting the stomach or biting in apparent abdominal distress)
- Urinary tract infections (hitting the lower abdomen or genitals)
- Undiagnosed injuries (hitting an injured area)
- Skin conditions (eczema flare-ups, particularly hidden by clothing)
- Seizure activity, some seizures present with behaviors that look like SIB
A child who can't reliably communicate verbally may have no way to tell you about pain except through behavior. Treating that pain response as a behavior to extinguish, without identifying the underlying medical cause, means your child continues to suffer.
The first step for new or escalating SIB is generally a pediatric visit that includes a thorough physical exam. Tell your pediatrician specifically: "My child is hitting themselves, and I want to rule out medical causes before assuming this is behavioral."
Beyond Medical Causes: What Else Drives SIB
Once medical causes have been evaluated, several other factors often contribute to SIB. Real assessment requires a qualified professional, but understanding the common patterns helps families know what kind of help to seek.
Communication needs. When a child can't communicate what they want, need, or feel, they're hungry, they want a specific item, they need a break, something hurts emotionally, and the people around them don't understand what they're trying to convey, frustration can build to the point where self-injury becomes how the distress comes out. Research consistently shows that supporting communication often reduces SIB substantially.
Sensory regulation. Some children seek deep sensory input for self-regulation, and SIB can be a form of that, particularly hitting that produces deep pressure or banging that produces vestibular input. This doesn't mean the SIB is okay; it means the underlying sensory need is real and can often be met through safer alternatives (deep pressure tools, weighted lap pads, vestibular activities) with an occupational therapist's guidance.
Escape from demand. A child overwhelmed by demands they can't meet may use SIB to communicate "this is too much" when other communication isn't available. Identifying what demand is overwhelming, and adjusting it appropriately, addresses the underlying issue.
Attention. Less commonly, SIB can function to seek attention. This is rarely a simple "manipulative" pattern, usually the child has learned that other communication doesn't reliably get a response, and SIB does.
Tangible access. Sometimes SIB functions to obtain access to a desired item. As with attention, this usually reflects a communication mismatch rather than manipulation.
Co-occurring conditions. Anxiety, depression (yes, in children), OCD, PANS/PANDAS, and trauma responses can all contribute to or drive SIB. These need their own evaluation and treatment.
A Functional Behavior Assessment (FBA), conducted by a BCBA, school psychologist, or other qualified professional, identifies which functions a specific child's SIB is serving and informs targeted support. This is a meaningful step that takes the situation seriously.
What To Do in the Moment
When SIB is happening, safety is the immediate priority, without using approaches that cause harm:
Do reduce demand and stimulation. Lower your voice (or stop talking). Reduce sensory input where possible. Give space. Most SIBs happen in a state of overwhelm; adding pressure makes things worse.
Do protect from injury when possible, moving sharp objects away, putting a soft barrier (your hand, a cushion, a pillow) between your child and the hard surface they're hitting, if you can do so without restraining. The goal is to reduce injury risk, not to physically stop the behavior through force.
Don't yell or punish. Yelling escalates sensory and emotional overload. Punishment for SIB has been documented to make it worse, not better, and to damage trust.
Don't physically restrain unless trained. Restraint without proper training is dangerous. It can cause injury, can be psychologically harmful, and can escalate the situation. If physical intervention is genuinely needed for safety, that's a sign you need professional support, not a sign you should improvise restraint.
Don't ignore severe SIB hoping it will stop. "Extinction" approaches that suggest ignoring SIB until it goes away are inappropriate and potentially catastrophic for severe SIB. Mild self-stimulatory behaviors that don't cause injury can sometimes be left alone; behaviors causing actual injury require active response.
Do stay calm yourself, as much as you can. Your nervous system communicates with your child's. Your calm presence, even when you don't know what to do, is more useful than your panic.
Do communicate after the episode passes. Once your child is regulated, gentle acknowledgment ("That was hard. I'm here") matters more than any post-incident analysis. Save the planning conversations for calmer times.
Functional Communication Training (FCT)
For SIBs that have communicative function, Functional Communication Training (FCT) is one of the most well-supported behavioral interventions. The approach: identify what the child is communicating through the SIB (need a break, want a specific item, communicating pain, escape from demand), then teach a more functional way to communicate that same need, often using AAC, sign, picture cards, or simple verbal requests.
FCT is typically delivered through a combination of:
- BCBA-led functional assessment to identify the function
- Speech-language pathology to develop appropriate communication tools (especially AAC)
- Family training so the approach is consistent across settings
- Patience, FCT works, but it takes time
If your child has SIB and isn't already working with an SLP (for communication development) and a BCBA (for functional behavior support), those are typically the right specialists to add to the team.
The Right Specialists for SIB Care
This is genuinely a multidisciplinary issue. Different specialists fit different aspects:
Pediatrician. First stop. Rules out medical causes, monitors overall health, refers to specialists.
Pediatric specialists (ENT, GI, dentist, neurologist, etc.), depending on what the pediatrician identifies. If GI symptoms accompany SIB, GI consult is appropriate. If headaches or seizure-like activity are suspected, neurology. Dental for oral-focused SIB.
BCBA for functional behavior assessment and behavioral support. A good BCBA working on SIB collaborates with medical providers and SLP rather than treating the behavior in isolation.
Speech-Language Pathologist (SLP) for communication assessment and AAC support, particularly if communication-related functions are identified.
Occupational Therapist (OT) for sensory assessment and sensory regulation support, particularly if sensory-driven functions are identified.
Child psychiatrist or psychologist when mental health concerns may be contributing (anxiety, depression, trauma, OCD).
Developmental pediatrician when complex or refractory SIB warrants more comprehensive coordination.
The right team depends on the specific child and the specific contributing factors.
Where ABA Fits, Honestly
Consistent with our other pieces on multidisciplinary issues, ABA is one part of the picture for SIB, not the whole answer.
Good ABA program for SIB:
- Starts with functional behavior assessment to identify what the SIB is communicating or accomplishing
- Coordinates with medical and other professional providers
- Builds functional communication skills as a primary intervention
- Adjusts environments and demands based on what assessment reveals
- Trains parents in approaches that work for their specific child
Good ABA program for SIB doesn't:
- Use punishment for SIB (extensive research shows this makes things worse)
- Rely on extinction of severe SIB (potentially dangerous)
- Treat SIB in isolation from medical and other professional evaluation
- Use restraint without proper training and oversight
- Insist on "compliance" through methods that increase distress
When evaluating an ABA provider for SIB work, ask: How do you handle medical workup? How do you coordinate with SLP and OT? How do you respond when a child shows distress during sessions? What's your approach to extinction protocols? Their answers reveal whether the practice fits this clinically sensitive work.
Supporting Yourself
Watching your child engage in self-injury is genuinely traumatic for parents and caregivers. Secondary trauma is real, and so is the exhaustion of crisis-mode parenting.
If you're struggling:
- Therapy with a clinician experienced in parents of children with high support needs can help
- Parent support groups (often run through autism organizations, your state's developmental disability services, or local hospitals) provide community
- Respite care, when accessible, isn't a luxury it's part of being able to sustain caregiving
- The
988 Suicide and Crisis Lifeline (call or text 988) is available for you, too. Caregivers of children with SIB sometimes reach crisis points themselves, and that's worth taking seriously
Your wellbeing matters. Your child needs you to be sustained, not depleted.
Conclusion
Self-injurious behavior in autistic children is a serious clinical concern that genuinely benefits from professional support, not just home strategies. If your child is experiencing SIB, please don't try to manage this alone with information from a blog post. Reach out to your pediatrician to start. Build a team. Trust that your child has reasons for what they're doing, even when those reasons aren't obvious yet, and that with good professional support those reasons can usually be identified and addressed.
At Steady Strides ABA, we work with families in Texas on behavioral concerns including SIB, but we're honest about when other specialists need to be central to the work and when our role is one part of a broader team.
If you'd like to talk through your child's situation, contact us for a conversation with a BCBA. For immediate safety concerns, please call your pediatrician or 911 first.
Frequently Asked Questions
When does my autistic child's self-hitting need medical evaluation?
For new or escalating self-injurious behavior, medical evaluation should generally come first, before behavioral interpretation. Pain from ear infections, dental issues, headaches, GI conditions, allergies, or undiagnosed injuries can drive SIB in a child who can't verbally express their distress. A pediatric visit that includes a thorough physical exam is typically the first step. Tell your pediatrician specifically: "My child is hitting themselves, and I want to rule out medical causes." If your child's SIB is severe (causing visible injury, signs of concussion, broken skin from biting) or has worsened recently, that's a reason to seek evaluation promptly rather than waiting for a routine appointment.
Is self-injurious behavior common in autism?
It's more common in autistic children than in non-autistic peers, particularly in children with higher support needs, intellectual disability, or limited communication. Research estimates vary, but a meaningful proportion of autistic children experience SIB at some point, and a smaller proportion experience persistent or severe SIB. Common doesn't mean inevitable or untreatable, supports exist, but they typically require professional involvement rather than home strategies alone.
What's the most effective intervention for self-injurious behavior?
The answer depends on what's driving the specific SIB, which is why functional assessment matters more than choosing a generic intervention. For communication-driven SIB, Functional Communication Training (FCT), teaching the child a different way to communicate the underlying need, often through AAC, has substantial research support. For sensory-driven SIB, sensory accommodations and OT-guided strategies. For medical-driven SIB, treating the underlying medical condition. For SIB with multiple contributing factors (common), multidisciplinary care that addresses each contributor. There's no single intervention that works for all SIB; the assessment determines the approach.
Should I physically stop my child from hitting themselves?
This is one of the hardest questions in SIB care. Generally: protect from injury where you can without using restraint, putting a soft barrier (your hand, a cushion) between your child and a hard surface, moving sharp objects away, creating physical space. Physical restraint without proper training is genuinely dangerous, it can cause injury, can be psychologically harmful, and can escalate the situation. If you find yourself regularly needing to physically intervene for safety, that's a sign professional support is needed, not a sign you should improvise restraint techniques. For severe and chronic SIB, some specialized clinical settings teach safe physical intervention techniques with proper training, but this isn't a home strategy.
What if my child is hitting themselves because they're frustrated?
Frustration-driven SIB is common, and it's often communication-related. The child may be unable to communicate what they want, what's bothering them, or what they need, and the frustration builds to the point of self-injury. The most effective long-term approach is usually Functional Communication Training (FCT) with an SLP and BCBA team, teaching the child more functional ways to communicate the underlying need. In the moment, reducing demand, lowering sensory input, and providing calm presence (without trying to "fix" the situation immediately) often helps the episode pass with less injury. Once the child is calm, gentle support without lecture works better than post-incident analysis.
Can ABA therapy help with self-injurious behavior?
It can be one part of effective care, but rarely the whole answer. Good ABA for SIB starts with functional behavior assessment to understand what the SIB is communicating, coordinates with medical evaluation and other specialists, builds functional communication as a primary intervention, and avoids punitive approaches. ABA shouldn't be the only intervention, medical workup, SLP for communication, sometimes psychiatric evaluation, and family support are typically needed alongside. When evaluating an ABA provider for SIB work, asking how they handle medical coordination, what their approach to extinction is, and how they respond when a child shows distress reveals whether the practice fits this clinically sensitive work.
When should I seek emergency help?
Call 911 or go to the emergency department if your child has lost consciousness (even briefly), has signs of concussion after head-banging (vomiting, confusion, severe headache, unequal pupils), has uncontrolled bleeding, has eye injury, or is in such severe distress that you can't safely manage at home. If SIB is escalating in severity, increasing in frequency, or you feel you're losing control of the situation, contact your pediatrician within 1-2 days even without a single emergency-level incident. If you yourself are in crisis from caring through these episodes, the 988 Suicide and Crisis Lifeline is available for you, call or text 988.
SOURCES:
https://www.autism.org.uk/advice-and-guidance/topics/behaviour/self-injurious-behaviour/all-audiences
https://pmc.ncbi.nlm.nih.gov/articles/PMC3990505/
https://www.healthychildren.org/English/health-issues/conditions/Autism/Pages/default.aspx
https://autisticadvocacy.org/about-asan/about-autism/
https://988lifeline.org/
https://spedsupport.tea.texas.gov/resource-library/autism-toolkit/breathing-techniques-calm
