Educational draft · awaiting clinical reviewThe full textbook explains uncertainty but does not replace live national or local guidance, specialist advice, or current prescribing information.
Conduct and oppositional problems
Psychiatry · UK scope · Sources checked 27 Aug 2026 · Clinical review pending
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Violence or exploitation needs a safety response
Immediate threats with weapons, serious assault, fire-setting, cruelty, dangerous absconding, exploitation, acute intoxication, suicidal behaviour, psychosis or inability of carers to keep anyone safe requires urgent multi-agency risk management rather than a routine behaviour appointment.
Action: Protect those present, call emergency services when danger is immediate, assess injuries, substances, mental state and access to weapons, and involve CAMHS, safeguarding, social care and police through local procedures as indicated. Use the least restrictive safe response, speak with the child privately when possible and do not return them to a potentially abusive or exploitative setting without a plan.
Overview
Assess persistent oppositional or conduct problems developmentally and without blame, identify neurodevelopmental, trauma, family and safeguarding needs, distinguish immediate danger from chronic difficulty, and deliver evidence-based parent, child and multimodal interventions.
Behaviour is information before it is diagnosis. Clarify exactly what happens, how often, with whom and under which demands. Tantrums in a preschool child, argument during adolescence and resistance to an unsafe adult may be developmentally or contextually understandable. A disorder becomes more likely when a persistent pattern is substantially outside developmental expectations, crosses settings or relationships and causes significant harm or impairment. Use verbs and examples rather than moral labels.
Oppositional problems centre on angry or irritable mood, argument and defiance; conduct problems include aggression, destruction, deceit, theft or serious rule violation. Severity depends on pattern, impact, remorse and repair, risk, developmental stage and context. Assess strengths and exceptions: a child who copes with one teacher or relative shows conditions that can inform intervention. Ask the child what they think adults misunderstand and what happens immediately before escalation.
Practice
Two practice questions
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PsychiatryOriginal SBA
Parent training age group
An 8-year-old has persistent oppositional behaviour across home and school without an immediate safety crisis. Which intervention is directly recommended by NICE for this age group?
Sources and review status5 sources · checked 27 Aug 2026 · clinical review pending+
Sources
Sources and review status
National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 27 Aug 2026; clinical approval remains outstanding.
Comprehensive assessment prevents diagnostic overshadowing. Explore ADHD, autism, intellectual, language and learning needs, anxiety, depression, trauma, attachment disruption, sleep, epilepsy, head injury, pain, substances and emerging psychosis or bipolar disorder. Map family stress, domestic abuse, inconsistent or harsh discipline, parental mental illness or substance use, poverty, housing, school exclusion, discrimination, peer dynamics, online activity and exploitation. These influences neither excuse harm nor justify blaming families; they identify treatment and safeguarding targets.
NICE prioritises psychosocial intervention. Group parent training for ages three to eleven uses social-learning principles, modelling, rehearsal and feedback to strengthen positive attention, predictable boundaries and consistent consequences. When problems are severe and complex, individual parent-and-child work can address barriers directly. Parent programmes are treatment for the child's needs, not a declaration that carers caused the disorder, and must be adapted for literacy, culture, disability, foster care and family safety.
Developmentally targeted child work builds emotion recognition, problem-solving, perspective taking and repair. NICE recommends considering social and cognitive problem-solving programmes for children aged nine to fourteen. For adolescents aged eleven to seventeen, multimodal programmes work across family, education, peers and community, often with intensive coordination. School plans should reinforce the same skills, avoid public humiliation and preserve access to education while protecting other pupils.
Medication is not routine behaviour control. Treat a confirmed coexisting ADHD according to ADHD guidance because reducing impulsivity can improve conduct. NICE permits consideration of short-term risperidone only for a young person with conduct disorder, severely aggressive behaviour, explosive anger and severe emotional dysregulation that has not responded to psychosocial interventions. It requires specialist assessment, explicit target and metabolic, movement, cardiovascular and hormonal discussion, review after three to four weeks and discontinuation if no clinically important response at six weeks.
Progress is measured through safety and participation: fewer and less severe incidents, quicker recovery, repair after harm, better attendance and learning, reduced family distress and stronger prosocial activity. A simple incident count can be distorted by increased adult surveillance or exclusion from settings. Review implementation fidelity and contextual change before concluding that the child is resistant.
Key points
Describe specific behaviours, frequency, settings, development and impact rather than calling a child difficult, manipulative, bad or antisocial.
Oppositional behaviour involves a persistent pattern of angry or irritable mood, argument and defiance beyond developmental expectations; conduct disorder includes repeated violation of others' rights or major age-appropriate rules.
Diagnosis requires persistence and impairment across context, not one conflict with an adult or a reaction to an unsafe, discriminatory or inaccessible environment.
Assess ADHD, autism, learning or language needs, depression, trauma, attachment, substance use, psychosis, physical illness and child maltreatment before attributing behaviour to conduct disorder.
A functional account maps antecedents, behaviour and consequences, including what the child communicates, obtains or escapes and how adults and peers respond.
NICE recommends group parent training for parents or carers of children aged 3–11 at high risk of or with oppositional defiant or conduct disorder.
For severe and complex problems aged 3–11, offer individual parent-and-child training; for ages 9–14 consider child-focused social and cognitive problem-solving.
For young people aged 11–17, multimodal interventions coordinate family, school, peers and community rather than relying on office therapy alone.
Aetiology
01
Temperament and neurodevelopment
Impulsivity, language, learning, attention and regulation differences alter frustration, reward learning and access to prosocial problem-solving.
02
Coercive interaction cycles
Escalation may end an aversive demand for child or adult, unintentionally reinforcing louder conflict on both sides.
03
Adversity and structural pressure
Trauma, domestic abuse, deprivation, discrimination, exclusion and unstable care increase threat and reduce consistent safe opportunities for learning.
04
Peer and community reinforcement
Status, belonging, coercion or material reward can strengthen harmful behaviour, particularly where protective activities and adults are scarce.
Pathophysiology
1
Reward and inhibition imbalance
Immediate reward can outweigh delayed consequences when executive control, future simulation and consistent reinforcement are still developing.
2
Threat reactivity
Prior danger and hostile interpretation increase rapid defensive arousal, narrowing capacity to pause, mentalise and choose another response.
3
Social learning
Observed, rewarded or successful aggression becomes more available, while inconsistent consequences make behaviour difficult to predict and change.
4
Language and regulation link
Limited emotional vocabulary and problem-solving skills can leave action as the fastest method of communicating need or ending conflict.
Clinical features and red flags
Oppositional pattern
Persistent irritability, argument, refusal and vindictiveness exceed developmental expectations and impair family, school or peer functioning.
Conduct pattern
Repeated aggression, destruction, deceit, theft or serious rule violation harms others or breaches major developmentally appropriate expectations.
Reactive dysregulation
Overload, threat, frustration or shame triggers rapid escalation with later recovery, pointing toward regulation and environmental mechanisms.
Proactive harmful behaviour
Planned or instrumental aggression and exploitation require careful assessment of peer reinforcement, coercion, empathy, safety and safeguarding.
Context-bound conflict
Difficulty limited to one adult, lesson or setting suggests relational, learning, sensory, discriminatory or safety factors needing direct intervention.
Exploitation-linked behaviour
Missing episodes, unexplained resources, older controlling associates and criminal acts under pressure may indicate victimisation rather than autonomous offending.
Red flags requiring action
Weapon access, credible threats, serious assault, strangulation, fire-setting or cruelty with immediate opportunity requires urgent safety assessment and restriction of access.
A sudden onset of aggression with reduced sleep, grandiosity, psychosis, confusion, seizure, head injury or intoxication suggests an acute disorder rather than a stable conduct pattern.
Investigations
01Specific behavioural timelineFirst step
Why
Define onset, frequency, severity, setting, triggers, consequences, harm and developmental fit.
Interpretation and limitations
Persistent cross-context patterns support diagnosis; episodic, new or relationship-specific behaviour directs alternative assessment.
02Multi-informant developmental assessment
Why
Integrate the child's account with family, school, social care and previous records where appropriate.
Interpretation and limitations
Differences identify context and must not be resolved automatically in favour of the most powerful adult.
03Functional analysis
Why
Map antecedents, observable behaviour, immediate outcomes, communication needs and adult or peer reinforcement.
Interpretation and limitations
The hypothesised function guides environmental and skills intervention and is tested through monitored change.
Treating a coexisting driver may reduce harm without assuming that one diagnosis accounts for the complete pattern.
05Safeguarding and exploitation assessment
Differential diagnosis
01
ADHD or autism
Impulsivity, overload, rigidity, communication difference and executive difficulty can resemble defiance and may coexist with learned harmful behaviour.
02
Trauma or current danger
Hyperarousal, avoidance, mistrust and reactive aggression may signal abuse, exploitation or threat requiring protection and trauma-informed care.
03
Mood or psychotic disorder
Episodic irritability, sleep reduction, grandiosity, depression or psychosis creates a different clinical treatment and emergency pathway.
04
Learning and communication need
Repeated failure, misunderstood language or inaccessible demands may produce escape behaviour limited to particular lessons or adults.
05
Physical or substance cause
Pain, sleep disorder, epilepsy, head injury, intoxication and medication effects can cause sudden or fluctuating behavioural change.
Management
01Initial formulationDescribe before diagnosingFirst stepRepeated conflict, aggression, rule breaking or irritability is reported by family, school or another service.+
1Speak with the child and carers, define behaviours and developmental context, identify strengths and obtain cross-setting information with appropriate consent.
2Assess neurodevelopment, mental and physical health, trauma, substances, learning, family stress, school environment, exploitation and safeguarding.
3Share a non-blaming formulation that separates immediate safety action from longer-term skills, family and environmental intervention.
02Child and family careMatch programme to age and complexityOppositional or conduct problems are persistent and no immediate emergency prevents planned psychosocial work.+
1For ages three to eleven offer group parent training, using individual parent-and-child work when problems are severe and complex.
Complications
01
Injury and legal consequence
Unmanaged aggression, risk taking and exploitation can harm the child and others and lead to arrest or restrictive placement.
02
Educational exclusion
Repeated sanction and absence reduce learning, prosocial peers and trusted adults, potentially strengthening the original pattern.
03
Family and placement breakdown
Fear, exhaustion and escalating conflict can overwhelm carers and destabilise foster, kinship or residential support placements.
04
Substance and criminal exploitation
Young people seeking belonging or reward may be recruited, coerced and exposed to violence, debt and further offending.
05
Stigma and undertreatment
Moral labels can obscure depression, trauma, learning need and victimisation and reduce clinicians' empathy and therapeutic persistence.
Monitoring and follow-up
Track frequency, severity, setting, injury, recovery and repair for defined behaviours rather than a global judgement that conduct is better or worse.
Review school attendance, exclusions, attainment, peer relationships, family stress, prosocial activity and the child's own goals alongside incident data.
Check that parent, child and multimodal programme components were delivered with necessary literacy, language, disability and transport adaptations.
Reassess exploitation, weapons, substances, self-harm, domestic abuse and carer capacity whenever behaviour or associates change.
For exceptional antipsychotic use, monitor the target plus weight, metabolic, movement, cardiovascular and prolactin-related effects through specialist care.
At every multi-agency review, name responsibility for safety, education, treatment, safeguarding and communication with the child.
Special situations
Behaviour is not identity
Describing an act precisely leaves room for change and avoids making a diagnosis sound like a moral verdict on the child.
Exceptions reveal solutions
Times when the child manages well can identify relationships, structure, communication and reinforcement that treatment can reproduce.
Parent training avoids blame
The intervention equips carers with tested tools and support; it does not establish that parenting caused all difficulties.
Offending can conceal victimisation
A child committing crime under coercion or exploitation needs protection even while risks to others are actively managed.
Exclusion changes the denominator
Fewer school incidents after removal from class may represent lost opportunity rather than genuine regulation or recovery.
Common pitfalls
01
Calling a child bad, manipulative, antisocial or attention seeking instead of documenting behaviour and context.
02
Diagnosing conduct disorder from one conflict, one setting or behaviour that is developmentally expected or a response to danger.
03
Ignoring ADHD, autism, learning, language, trauma, pain, mood, substances and exploitation during a discipline-focused assessment.
04
Presenting parent training as punishment or proof that carers caused the problem.
05
Using school exclusion or police involvement as substitutes for therapeutic and safeguarding formulation.
06
Offering routine sedating medication before age-appropriate psychosocial intervention and functional assessment.
07
Continuing specialist risperidone beyond six weeks despite no clinically important response.
Do not routinely use medication for behavioural problems; treat coexisting ADHD appropriately and reserve short-term specialist risperidone consideration for narrowly defined severe aggression after psychosocial non-response.
Criminal or sexual exploitation, trafficking, gang control, coercive older peers, unexplained money or repeated missing episodes are safeguarding concerns, not merely delinquency.
Injuries, fear of a carer, domestic abuse, harsh punishment, neglect or developmentally inappropriate responsibility requires private enquiry and safeguarding action.
Suicidal behaviour, severe self-harm, escalating substance use or profound school and relationship collapse can accompany externalising presentations and must be asked about directly.
Why
Identify abuse, neglect, domestic violence, coercion, trafficking, gang or sexual exploitation and unsafe discipline.
Interpretation and limitations
Concern prompts local safeguarding action; criminalised behaviour does not remove the child's right to protection.
06Baseline before specialist antipsychotic
Why
Record target behaviour and physical, metabolic, movement, cardiovascular and hormonal risk when exceptional medication is considered.
Interpretation and limitations
A measurable baseline is necessary for the three-to-four-week review and six-week stop decision.
2
For ages nine to fourteen consider social and cognitive problem-solving work, adapted for learning, communication and trauma needs.
3For ages eleven to seventeen use a multimodal approach across family, school, peers and community with one coordinated outcome plan.
03Severe aggressionUse medication only after defined non-responseA young person with conduct disorder has severely aggressive behaviour, explosive anger and severe emotional dysregulation despite psychosocial intervention.+
1Recheck diagnosis, physical and environmental drivers, treatment fidelity, safeguarding and immediate danger, and obtain specialist psychiatric assessment.
2If short-term risperidone is considered, discuss off-label or product-specific status and metabolic, movement, cardiovascular, hormonal and subjective effects.
3Measure the exact target, review benefit and adverse effects after three to four weeks, and stop by six weeks if no clinically important response.
Key medicines and prescribing safety1 treatment · regimens, roles and cautions+
A specialist-only short-term option for severely aggressive conduct-disorder behaviour with explosive anger and severe emotional dysregulation after a well-delivered psychosocial intervention has not produced sufficient response.
Risperidone for persistent severe aggression in conduct disorder
For children and adolescents aged 5 to 18 within the product-specific licensed scope: if body weight is 50 kg or more, start 0.5 mg orally once daily and, if needed, adjust by 0.5 mg no more often than every other day; the usual dose is 1 mg daily and the licensed range is 0.5 to 1.5 mg daily. If body weight is below 50 kg, start 0.25 mg orally once daily and, if needed, adjust by 0.25 mg no more often than every other day; the usual dose is 0.5 mg daily and the licensed range is 0.25 to 0.75 mg daily. Licensed treatment is short term, up to 6 weeks.
Check the exact product licence: the cited SmPC limits licensed paediatric conduct-disorder use to ages 5 to 18 with subaverage intellectual functioning, so use outside that scope is off label. Assess pain and social or environmental causes first; monitor sedation and learning, weight and metabolism, movement, cardiovascular and prolactin-related effects. Review at 3 to 4 weeks and stop at 6 weeks if there is no clinically important response; halve starting and subsequent doses and titrate more slowly in renal or hepatic impairment.