There are many reasons why children would have anger issues. One of the reason is that the child does not have the skills to manage his/her anger. Anger issues can also be a symptom of another issue, such as depression, oppositional defiant disorder, reactive attachment disorder, or trauma. A complete history and assessment is needed in order to differentiate anger issues.
Symptoms of Anger Issues
Punching or kicking things or people
Reacting quickly and violently to small problems
Difficulty calming his/her self down
Arguing about the same things