Self Injurious Behavior

Self-Injurious Behavior

Self-Injurious Behavior

Paraprofessional Best Practice Library

Brief 05.15

Self-Injurious Behavior

Function, safety, common interventions, and when to escalate

For paraprofessionals supporting students who self-injure

Why this brief

Self-injurious behavior (SIB) is one of the hardest things paras encounter — both because of what it does to the student physically and because of what it does to the people who watch. SIB is more common in some populations (autism, intellectual disability, certain genetic syndromes) than in the general population, and paras working in self-contained, severe-needs, or behavior-support settings often see more of it than people in other roles. Beyond those specific contexts, paras supporting students with mental health concerns may encounter different forms of self-harm — cutting, hair pulling, hitting walls — that fall in related territory.

This brief covers the practical version: what SIB is, what its functions are, how to keep students safe, what evidence-based interventions look like, when to call in a BCBA or psychiatric consult, and how to take care of yourself and the team in this work. Brief 05.17 (Suicide and Self-Harm Risk Response) covers the specific case of suicidal self-harm in adolescents and adults; this brief covers the broader range of behaviors that fall under SIB, including those that aren't suicidal but still cause harm.

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| The frameSIB is communication. Even the most distressing self-injury usually serves a function — escape, attention, sensory, communication, regulation. The team's job is not just to stop the behavior in the moment but to figure out what it's doing for the student, then build a way for the student to get that without the harm. Stopping SIB without addressing function means it usually returns or transforms. |

Who this brief is for

Paras supporting students with autism, intellectual disability, or genetic syndromes that include SIB

Paras working in self-contained, EBD, or behavior-intensive settings

Paras supporting students with mental health concerns who self-harm

Paras who have witnessed SIB and want to understand it better

Supervising teachers, BCBAs, and admins responsible for safety planning

What SIB is

Definition

Self-injurious behavior refers to behaviors performed by an individual that cause or have potential to cause physical harm to themselves. It's distinct from accidental injury and from socially-modeled body modification. The behaviors include but aren't limited to:

Head-banging (against wall, floor, furniture)

Self-hitting (face, head, chest, body)

Self-biting

Skin-picking, gouging, scratching to the point of harm

Hair-pulling (trichotillomania) when severe

Eye-poking or eye-pressing

Pica — eating non-food items in ways that cause harm

Cutting

Burning

Hitting walls or objects with body parts (causing harm)

Forcing oneself to vomit or refusing food in eating-disordered patterns

Engaging in physically dangerous behavior (running into traffic, jumping from heights)

Populations more likely to engage in SIB

Students with autism (estimates vary; \~25-50% engage in some SIB at some point)

Students with significant intellectual disability

Specific genetic syndromes — Lesch-Nyhan, Cornelia de Lange, Smith-Magenis, Prader-Willi

Students with significant mental health concerns — borderline personality features, severe depression, history of trauma

Students with sensory processing differences

Adolescents — non-suicidal self-injury (NSSI) increases substantially during adolescence even in typically-developing students

Severity range

SIB exists on a wide range of severity:

Mild — occasional, doesn't break skin, doesn't impair function

Moderate — regular, sometimes breaks skin, requires response

Severe — frequent, significant tissue damage, requires intensive intervention

Life-threatening — bone damage, vision loss, infection from open wounds, seizures from head-banging

All severity levels deserve attention. Mild SIB can become severe; severe SIB is a medical emergency.

Functions of SIB

SIB is rarely random. The four functions framework (brief 05.01) applies, with some specific patterns.

Sensory / automatic reinforcement

The behavior produces a sensory experience the student finds reinforcing — pain, pressure, vestibular stimulation, release of endogenous opioids.

Often happens during downtime or low-stimulation periods

Continues whether or not adults respond

Some genetic syndromes (Lesch-Nyhan, Cornelia de Lange) are particularly associated with sensory-maintained SIB

Often the most resistant to intervention because the reinforcer is internal

Escape / negative reinforcement

The behavior leads to removal of demands or unpleasant situations.

Demands are presented; SIB starts; demands are removed

Increases over time as students learn the contingency

Common with academic demands, transitions, hygiene routines

Treatment often involves graduated exposure plus replacement communication

Attention / social positive reinforcement

The behavior produces adult attention — which is reinforcing even if the attention is concerned, frustrated, or sympathetic.

Often happens when adult attention has been withdrawn

Adults' instinct to rush to the student is reinforcing

Treatment involves shifting attention contingency without abandoning the student

Tangible / access

The behavior produces access to a desired item or activity.

Some students learn that SIB gets them out of one activity and into another

Some learn it gets them food, sensory items, or preferred adults

Multiply maintained

Most SIB serves more than one function. A student may head-bang for sensory feedback during downtime AND for escape during demands AND for attention sometimes. The FBA needs to identify all the functions.

Function vs. cause

Functions are the maintaining contingencies — what's keeping the behavior going. Causes can include underlying conditions (genetic syndromes, medical issues, mental health). The same SIB can be triggered by:

Sensory needs not being met elsewhere

Communication frustration (especially in non-speaking students)

Pain (toothache, ear infection, GI issue, headache, period cramps)

Mental health concerns

Sleep deprivation

Hunger or other physiological discomfort

Side effects of medications

Always consider medical and physiological contributors first when SIB appears or worsens — sometimes a treatable medical issue (chronic ear infection, dental pain) is driving the behavior.

Safety first — in the moment

When SIB is happening, the immediate priority is safety. Specific moves vary by student, BIP, and severity, but the general framework:

Step 1: Immediate safety

Move dangerous objects away from the student

Cushion contact surfaces if head-banging — soft items between the student's head and the wall, floor, or furniture

Position yourself to block contact when trained and authorized to do so

Don't grab or restrain unless trained, authorized, and necessary — physical engagement often escalates SIB

Step 2: Reduce stimulation

Calm voice, minimal language

Reduce demands

Remove other students from the area

Lower lights, sound if possible

Step 3: Wait for de-escalation

Most SIB episodes are time-limited

Adult presence (calm, non-demanding) often helps

Wait for the wave to pass

Step 4: Recovery

Brief 05.10 (Escalation Cycle) covers the general framework

Don't immediately demand work return

Provide regulation supports (sensory items, quiet space)

Address physical needs — water, ice, first aid as needed

Specific cautions

Hand-blocking head-banging requires specific training and protective equipment

Helmets are sometimes prescribed for safety; their use should be team-decided and family-supported

Restraint is a last resort and follows district training (CPI, Safety-Care, etc. — see brief 14.05)

Don't pretend the behavior isn't happening — engaging calmly is different from ignoring

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| DocumentationEvery SIB incident gets documented — what happened, what staff did, what worked, what didn't, how long, what injuries resulted. This data drives the FBA, the BIP, and the team's planning. See brief 05.11 (Crisis Response) for documentation principles. |

FBA for SIB

Brief 05.02 (FBA) covers the process. SIB-specific considerations:

Particular care in data collection

Frequency, duration, intensity all matter

Location on body (face, head, hand)

Tissue damage produced (none, redness, breaking skin, bruising)

Specific physical environment

What was happening in the 30 seconds, 5 minutes, 30 minutes prior

Antecedents to track specifically

Demands (what kind, what difficulty)

Transitions

Sensory environment (loud, crowded, bright)

Time of day, day of week

Sleep the night before

Food intake — hunger, recent meals

Medication timing

Health status — illness, period, dental, ear

Setting events from home (family stress, bus issues)

Consequences to track

Adult response — what specifically did staff do?

Was the demand removed?

What attention was provided?

How long until the behavior stopped?

Functional analysis (FA)

For severe SIB resistant to standard intervention, BCBAs sometimes conduct functional analysis — systematically presenting different conditions to identify which trigger the behavior. This is highly technical work; paras may assist with logistics under direction. FA can identify functions that are missed by description-only FBA.

Working with the BCBA

BCBA design and oversight is standard for serious SIB cases

Brief 12.06 (Working with the BCBA) covers the relationship

Bring honest data; don't sugarcoat

Common interventions

Once the function is hypothesized, function-based intervention follows. Some specific approaches by function:

Sensory-maintained SIB

Sensory diet — providing alternative sensory experiences proactively (brief 05.21, 12.04)

Specific replacement behaviors (squeezing a stress ball instead of self-hitting, chewing a chewy instead of biting)

Environmental modification — sensory-friendly spaces

OT involvement essential

Sometimes resistant; may require intensive specialized support

Escape-maintained SIB

Functional Communication Training — teach asking for breaks (brief 05.06)

Demand fading — gradually rebuilding tolerance

Curriculum modification — appropriate-difficulty work

Embedded breaks built into work schedule

Don't escape contingency — completion before break, but the break is real

Attention-maintained SIB

Increase attention to non-SIB behavior (planned attention)

Reduce attention to SIB while maintaining safety

FCT for asking for attention appropriately

Schedule of attention — predictable adult engagement so the student doesn't have to escalate to get it

Tangible-maintained SIB

Schedules of access — building in predictable times for preferred items

Teach asking for items appropriately

Don't deliver the desired item contingent on SIB

Multiply-maintained SIB

Comprehensive plan addressing all functions

Often more complex; higher BCBA involvement

Plan needs to be coherent across functions, not contradictory

Replacement behaviors

Across all functions, the goal is teaching what the student can do INSTEAD of SIB to get the same result. Common replacement behaviors:

Communication — verbal, AAC, sign, picture exchange — for needs the SIB was meeting

Sensory alternatives that produce similar but safer experience

Calm-down strategies the student can self-deploy

Asking for help, breaks, items

Brief 05.06 (FCT) covers replacement communication. Replacement behaviors must produce the same reinforcement as the SIB more efficiently — otherwise the student stays with what works.

Medical and medication considerations

Medical evaluation

Severe or sudden-onset SIB warrants medical evaluation:

Hidden pain (dental, ear, GI, headache, joint, period)

Sleep disorders

Medication side effects

Hormonal changes (puberty, menstrual cycle, thyroid)

Sometimes neurological events

Sometimes autoimmune or inflammatory conditions

Medications for SIB

Some students take medications to reduce SIB. Common categories:

Antipsychotics — risperidone, aripiprazole — FDA-approved for irritability in autism

Mood stabilizers — sometimes used

SSRIs — for underlying anxiety or depression

Naltrexone — sometimes used for opioid-mediated sensory SIB

Medications are prescribed by physicians or psychiatrists, not by school teams. Para's role:

Implement the medication plan as the nurse delegates (brief 09.04)

Document behavior over time so the team can assess medication effects

Watch for side effects and report

Don't make medication recommendations to families

Combination approach

Most effective treatment for moderate-severe SIB is often combination — behavioral intervention (FBA, BIP, replacement skills) plus medical/medication management plus medical optimization (treating any pain or contributing condition). Each component matters.

When to involve psychiatry

Some signals that psychiatric consultation should be on the table:

Severity and danger

Tissue damage requiring medical attention

Risk of permanent damage (eyes, ears, bone)

Behavior intense enough to require restraint regularly

Behavior that puts staff at significant injury risk

Frequency and resistance

Multiple incidents per day across long periods

Limited response to behavioral intervention

Worsening over time despite team efforts

New onset

Sudden appearance of SIB in a student who hasn't done it before

Pattern shift in a student who's done it but at different intensity

Often warrants medical evaluation as well

Crisis hospitalization

Sometimes SIB requires hospitalization for stabilization:

Severe behaviors that can't be managed safely outpatient

Acute mental health crisis

Medication adjustment needs in a controlled setting

Specialized inpatient programs for severe behavior

This is a family and medical decision, not a school decision. Schools can advocate, document, and support the family through it.

Para's role around psychiatry

Provide observation data to whomever the student is seeing

Communicate via case manager and family

Implement medication delivery per nurse delegation

Don't share specific psychiatric information with people who don't have a need to know

Adolescent non-suicidal self-injury (NSSI)

A specific subset of SIB common in adolescents — typically cutting, burning, scratching to the point of injury. Distinct in some ways from the SIB seen in younger students with autism or significant ID.

Patterns

More common in students with anxiety, depression, trauma, or borderline personality features

Often functions to regulate intense emotion — provide a release

Often hidden — long sleeves, specific body locations

Frequently overlapping with other mental health concerns

Distinct from suicide attempts (different motivation), but increased risk for suicide attempts

What paras may notice

Visible cuts, burns, or scars

Always-covered limbs, even in heat

Razors or other implements in possessions

Comments about "feeling something" or "making the pain stop"

Withdrawal, sadness, or other distress signals

Response

Don't react with shock or disgust

Do not promise confidentiality you can't keep — this often warrants counselor involvement

Connect to school counselor immediately

Brief 05.17 (Suicide and Self-Harm Risk Response) covers protocols

Mandated reporting may apply if abuse is involved

Don't try to manage NSSI alone — this needs clinical support

DBT and other approaches

Adolescents with NSSI often benefit from Dialectical Behavior Therapy (DBT) or related approaches. School can support — through counselor relationship, regulation skills (brief 05.21), and reduced stigma — but treatment is clinical.

Ethical considerations

SIB intervention has specific ethical complexities.

Restraint and intrusive procedures

History of educational practices that treated SIB as something to be punished

Aversive interventions (electric shock, contingent restraint) have been used historically and are still used in some settings — controversial and increasingly restricted

Modern best practice favors function-based positive intervention

Brief 05.12 (Restraint and Seclusion) covers the legal and ethical frame

Disability rights perspective

Some autistic adults critique behavioral approaches to SIB as compliance training that doesn't address the student's actual experience

Listen to autistic and disability advocates' perspectives

Functional approaches that center the student's communication, comfort, and dignity are more aligned with disability rights

Quality of life

The goal isn't just reducing SIB — it's improving quality of life

Reducing SIB while creating misery doesn't serve the student

Plans should improve overall well-being, not just behavior metrics

Para participation in tough decisions

Sometimes you'll have concerns about specific interventions — restraint frequency, helmet use, aversive procedures

Brief 13.05 (When You See Something Wrong) and 16.07 (I Was Asked to Do Something That Felt Wrong) cover escalation

Team self-care

Watching SIB is psychologically taxing. Implementing interventions can be exhausting. Both deserve attention.

Common reactions

Anxiety before encounters with the student

Sleep disruption

Cumulative emotional drain

Sometimes vicarious trauma symptoms

What helps

Debrief after every significant incident

Adequate staffing — paras shouldn't be 1:1 with severe-SIB students for full days indefinitely without break

Strong team supervision — BCBA, supervising teacher, building admin involvement

Rotation when possible

Time off after particularly difficult periods

EAP and therapy for staff carrying the load

Brief 14.03 (Vicarious Trauma) covers cumulative effects

Watch for

Burnout in yourself and colleagues

Numbing as a coping mechanism that affects work quality

Sleep, mood, relationship effects outside work

Brief 14.01 (Burnout) covers warning signs

Working with families and outside providers

Severe SIB often involves multiple care systems.

Family expertise

Family knows the student's SIB history better than school

Family has often tried multiple approaches

Family has likely consulted specialists, doctors, perhaps therapists

Listen and integrate — don't operate as if school is the only system

Outside providers

Many students with severe SIB have outside BCBAs, therapists, psychiatrists

Coordination across systems matters

Information flows through proper channels (family consent, formal communication)

Sometimes the school's plan and the home/clinical plan need to align — case manager facilitates

School avoidance, refusal to attend

Some severe-SIB students have periods of school refusal — brief 05.13 (When the Plan Isn't Working, planned) and broader school-avoidance literature

Coordinate with family on returning

Sometimes alternative settings are appropriate temporarily

Intensive home-based behavioral support

Some students receive home-based ABA or behavioral support funded through Medicaid or insurance

Coordination between home program and school program important

Different teams need to communicate

Pitfalls

| Try this | Watch out for |

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| Treat SIB as communication serving a function | Treat SIB as random or as the student being 'bad' |

| Conduct FBA before designing intervention | Apply generic 'consequence' approaches without function understanding |

| Consider medical and physiological contributors first | Assume new SIB is purely behavioral without medical eval |

| Document specifically — frequency, duration, intensity, location, antecedents | Generalize ('he's been bad today') without specifics |

| Implement function-based intervention with replacement skills | Try to extinguish SIB without giving the student an alternative way to get the function met |

| Use restraint and protective equipment only when trained, authorized, necessary | Improvise physical interventions without training |

| Recognize when severity warrants psychiatric or medical consultation | Manage severe SIB indefinitely with school behavioral resources alone |

| Distinguish adolescent NSSI from severe SIB in students with disabilities — overlapping but different | Apply same approach across both |

| Take care of yourself and the team | Carry severe SIB exposure without support |

| Listen to family expertise and disability advocates' perspectives | Treat school behavioral plan as the only legitimate frame |

Scenarios

Scenario 1: A new SIB pattern

Your student with autism, who's never engaged in SIB, has started hitting his head against the wall during transitions.

Take it seriously immediately. Get a medical evaluation — sudden-onset SIB can indicate pain (ear infection, dental issue, headache, GI). Document specifics — when, what preceded, intensity. Bring it to the BCBA and case manager urgently. Don't wait for it to escalate. Track patterns for the FBA. Modify transitions in the meantime — pre-warning, sensory support, smoother handoffs. The early response often determines whether this becomes a fixed pattern or resolves.

Scenario 2: Sensory-maintained SIB

Your student with significant intellectual disability has been hand-biting for years — typically during downtime, less during structured activities. Behavioral interventions have had limited effect.

Sensory-maintained SIB is often the hardest to address with behavioral intervention alone because the reinforcer is internal. Coordinate with OT for sensory diet (alternative sensory inputs proactively provided). Consider mouth-safe chewables. Schedule consistent stimulation throughout the day. Behavioral plan with replacement behaviors that produce similar sensory experience. Sometimes medication consultation is appropriate. Brief 12.04 (OT) is key partner.

Scenario 3: An incident with serious tissue damage

During a meltdown, your student bit himself hard enough to draw blood and require nurse attention.

Document specifically. Nurse for first aid. Family contact same day. Debrief with the team — what worked, what didn't, what would help next time. If this is a pattern of severity escalation, bring it to the BCBA urgently — the plan may need significant revision. Consider whether psychiatric consultation is appropriate. Process for yourself — watching this is hard.

Scenario 4: A teenager with NSSI

A 14-year-old in your inclusion classroom — not an SpEd student — comes back from PE in a long-sleeved shirt despite the heat. You notice fresh cuts on her wrists when she rolls up her sleeves to wash hands.

Connect with the school counselor immediately, before end of day. Don't promise confidentiality. "I'm worried about you. I need to bring in Mrs. Patel; she's the right person to help." Stay calm; don't react with shock. Brief 05.17 (Suicide and Self-Harm Risk Response) and 16.06 (Disclosure of Abuse) cover protocols. NSSI in adolescents is often connected to mental health concerns that need clinical support.

Scenario 5: A request to use a helmet

The team is considering a helmet for a student whose head-banging is causing concern. The family is uncomfortable.

Helmet use is a serious decision. It can prevent acute injury but raises dignity, stigma, and quality-of-life concerns. The BCBA, doctor, family, and team should all engage. Listen to the family's concerns. Look at whether other interventions could be more aggressive first. If the helmet is the right answer, work toward fading as soon as feasible. Don't normalize indefinite helmet use without ongoing review.

Scenario 6: A staff member responding poorly

Another staff member, when responding to your student's SIB, has been yelling and making sarcastic comments — "Stop being dramatic."

This is wrong on multiple levels — escalating, ineffective, dignity-violating. Address it. Quietly with the colleague: "I notice that response isn't helping; let's talk about what works." If it continues, escalate to supervising teacher and admin. Brief 13.05 (When You See Something Wrong) covers escalation. SIB students deserve calm professional response, not adult emotional reactivity.

Closing thought

Self-injurious behavior is one of the most challenging things paras encounter. It's distressing to witness, hard to interrupt safely, often resistant to easy intervention, and demanding of careful team work. The students who engage in it deserve thoughtful, function-based, dignity-preserving response — not punishment, not shocked reaction, not abandonment. The teams that work with them deserve real support.

The work is teamwork. BCBA design, medical evaluation, family expertise, OT consultation, careful observation by paras, all integrated. Done well, even severe SIB can be reduced significantly over time. Done poorly, students and staff can both be harmed. The skill is in the patient, careful, function-based approach — and in caring for each other through the work.

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| Bottom lineSIB is communication. Identify function before intervening. Consider medical contributors. Document specifically. Implement function-based replacement behaviors. Use restraint and protective equipment only when trained, authorized, necessary. Distinguish severe SIB from adolescent NSSI. Recognize when psychiatric or medical consultation is needed. Take care of yourself and the team. Listen to family expertise and disability advocate perspectives. |

Related briefs

05.01 Function-Based Thinking

05.02 Functional Behavior Assessment

05.03 Reading and Running a BIP

05.04 Antecedent Strategies

05.06 Functional Communication Training

05.10 Escalation Cycle and De-escalation

05.11 Crisis Response

05.12 Restraint and Seclusion

05.17 Suicide and Self-Harm Risk Response

05.21 Emotional Regulation and Co-Regulation

06.04 ABC Narrative Recording

07.01 Autism

07.05 Intellectual Disability

09.04 Medication Administration

12.04 Working with the OT

12.06 Working with the BCBA

14.03 Vicarious Trauma

16.07 I Was Asked to Do Something That Felt Wrong

Resources: Behavior Analyst Certification Board (BACB) ethics code; Autism Society; Self-Injurious Behavior Inhibiting System literature; The Trevor Project (1-866-488-7386) for adolescent self-harm; 988 Suicide and Crisis Lifeline

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