Conduct Disorders

& Behavioural Problems

Mental Health Info & Links  -

A-Z Mental Health Conditions    Young People's Mental Health

ADD Main Page

Conduct Disorder     Oppositional Defiant Disorder       Behaviour Links     Books


There are many causes of behavioural problems, but I will here focus on Conduct Disorder and Oppositional Defiant Disorder.  See the Children &Young People's Mental Health page, and links below for other issues.


Conduct Disorder

Conduct Disorder is characterized by a repetitive and persistent pattern of dissocial, aggressive or defiant conduct -  which repeatedly violates the property and personal rights of others. 

It (or ODD) may co-exist with ADD, and it is common for the diagnosis to be confused with ADD.  In ADD, there is not normally the premeditative behaviours or anger that is seen in Conduct Disorders.   30-50% of all children diagnosed with ADD though, may also have Conduct Disorder (CD) or Oppositional Defiant Disorder (ODD)

Examples of behaviours which may be seen in Conduct Disorder are:









running away from home

frequent & severe temper tantrums



blames others

easily annoyed

use of weapons

disrupt & abuse others

excessive profanity



criminal activity

They are often seen by others as being spiteful and vindictive people, who always blame others.

CD Links


Oppositional Defiant Disorder

Broadly similar to Conduct Disorder, (and may display many of the above listed behaviours) and primarily characterized by markedly defiant, hostile, disobedient, disruptive behaviour - but ODD does not include the more extreme forms of aggressive or dissocial behaviour which results in seriously violating the rights of others.  Up to  30-40% of adults with ADD, are thought to have had ODD during adolescence.    ODD may occur before Conduct Disorder, and may start in the pre-school years (Conduct Disorder usually occurs in older children).

ODD Links


Behavioural Problems and Conduct Disorder  RCPsych

See also Anger Self-Help & Links


Behaviour Problems


The Children of Rage

Helping Children Cope with Anger

Stepping Back from Anger (children & divorce)

Mental Health & Growing Up Factsheets  RCPsych

Behaviour Related Links

Conduct Disorder

Conduct Disorder Factsheet

Conduct Disorder

Diagnostic Criteria DSM4

European Description  ICD10

Conduct Disorder in Children & Adolescence

Oppositional Defiant Disorder

Oppositional Defiant Disorder

Oppositional Defiant Disorder Factsheet

Diagnostic Criteria  DSM4

European Description  ICD10   Forum

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The Explosive Child : A New Approach for Understanding and Parenting Easily Frustrated, 'Chronically Inflexible' Children


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17 March 2002