Conduct disorder is when a child has a really hard time following rules and behaving well. It's like when you're playing a game and someone is breaking all the rules and it's not fun anymore. Kids with conduct disorder might lie, cheat, steal, hurt animals or people, or destroy things. This kind of behavior can get them into a lot of trouble at home, at school, and in the community.
Imagine if everyone followed the rules and played nicely together. That's how things should be, but some kids with conduct disorder just can't seem to do that. It's like they have a brain that makes them want to do things that hurt others or themselves.
The good news is that there are people like doctors and therapists who can help kids with conduct disorder learn how to follow rules and behave better. It might take some time and effort, but it's worth it to be a good friend and live in a safe and happy community.