Anger is a normal, healthy emotion. Like all emotions, it is neither good nor bad. It conveys information to someone, letting them know a situation is upsetting, unjust, or threatening. The trouble starts when your standard reaction to anger is to explode. It is likely that your message never has a chance to be conveyed. Anger management becomes a problem when you express feelings in a way that harms yourself or others. This is where it crosses the line from communication to things like bullying, intimidation, and aggression.