Jeff Herring from Knight Ridder News Service says:

Most people believe their anger "just happens" in one of two ways: They either can't help themselves or someone or something makes them angry. The reality is, you can help yourself, and no one makes you angry because anger is a choice. Anger is a secondary emotion. In other words, before you feel anger, you have felt something else first. There are three primary emotions or feelings that typically come before anger:

1. Frustration — something has not gone your way, gotten in your way or frustrated you in some other way.
2. Fear — you have been scared by something or you are extremely worried about something.
3. Hurt — your feelings got hurt.
The next time you get angry, pay attention to what you were feeling before it happened. Was it frustration, fear or hurt?

As you get good at identifying which feeling usually comes first for you, you will be able to identify this as your primary anger language. Deal with that emotion first and the need for the anger will diminish or disappear.