Conduct-Dissocial Disorder
Are girls more likely to have Conduct-Dissocial Disorder?
Conduct-Dissocial Disorder (ICD-11 6C91) is diagnosed more often in boys than girls, not the reverse. Girls can experience it too, sometimes with more relational rather than overtly aggressive behaviour, which means it can be under-recognised. What matters most is whether a behaviour pattern is persistent, across settings and causing real difficulty — that warrants a developmental check.
One of the first questions parents ask is whether their daughter is more — or less — likely to develop conduct difficulties than a son.
In short
No — research consistently shows that Conduct-Dissocial Disorder (ICD-11 6C91) is diagnosed more often in boys than girls, not the other way round. Girls can and do experience it, but typically at lower rates and sometimes in less obvious ways — more relational behaviours (excluding others, spreading conflict) rather than overt aggression. What matters far more than your child's sex is the pattern of behaviour over time and whether it is causing real difficulty at home, at school or with friends.What this actually means for girls
Conduct-Dissocial Disorder describes a repeated, persistent pattern of behaviour that violates the rights of others or major age-appropriate rules — well beyond ordinary cheekiness or testing of limits.- Girls are under-recognised, not protected. Because girls' difficulties can show as covert or relational behaviour rather than physical aggression, signs are sometimes missed or labelled as something else.
- Onset and context matter. A pattern emerging with stress, family change, learning struggles or low mood deserves attention regardless of sex.
- It rarely travels alone. Anxiety, low mood, ADHD or learning differences often sit alongside — and addressing those changes the picture.
- Sex is a statistic, not a destiny. Population trends never tell you about your child. Persistent, impairing behaviour is worth assessing in any child.
When to seek a developmental check
Speak to a professional if challenging behaviour is frequent, persistent (months, not days), happening across more than one setting, and clearly affecting relationships, learning or safety. Early, supportive assessment helps everyone — it is about understanding the why behind the behaviour, not labelling a child.The Pinnacle way
A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from an article or an online form. Our team looks at the whole child — emotional regulation, communication, learning and family context — to understand what is driving the behaviour. Explore [how we support families](/), understand the AbilityScore®, or learn about behaviour and emotional-regulation support.Trusted sources
WHO ICD-11 classification of Conduct-Dissocial Disorder; American Academy of Pediatrics guidance on disruptive behaviour in children; NICE guidance on antisocial behaviour and conduct disorders.Next step — If a behaviour pattern in your daughter has you concerned, [book a developmental check with a Pinnacle clinician](/) for clarity and a way forward.
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
What to watch
Behaviour that is frequent, persistent over months, happening in more than one setting, and clearly affecting relationships, learning or safety — in a child of any sex.
Try this at home
When behaviour escalates, name the feeling before correcting the action — 'I can see you're really frustrated' calms the moment faster than a consequence and helps a child learn to regulate.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
Is Conduct-Dissocial Disorder more common in boys or girls?
It is diagnosed more often in boys than girls. Girls can experience it too, but typically at lower rates and sometimes with more relational behaviours rather than overt aggression, which can make it easier to miss.
Could my daughter's difficulties be overlooked because she's a girl?
Possibly. Because girls' conduct difficulties can show as covert or relational behaviour rather than physical aggression, they are sometimes under-recognised. Persistent, impairing behaviour is worth assessing in any child.
When should I seek help for my child's behaviour?
Seek a developmental check when challenging behaviour is frequent, persists over months, happens across more than one setting, and clearly affects relationships, learning or safety — regardless of your child's sex.