Not everyone gets angry for the same reasons, but there are some common threads behind what drives anger for most people.
Pain and anger fuel one another. Very often, anger issues develop after abuse, or some other trauma you’ve experienced (neglect, assault, abandonment, etc.)
SENSE OF INJUSTICE
This is one of the most common sources of anger. When you feel you or someone you care about have been treated unfairly, anger is often a natural consequence.
Grief after a loss often includes anger because you’re upset that someone you love can no longer be with you, or because you feel like your life will never be the same (i.e. when someone you love dies, or after losing a job or ending a relationship).