Why does my dad have anger issues?

There can be many different causes of anger issues. However, some common causes of anger issues include genetic predisposition, past trauma, stress, and certain mental health conditions such as depression or anxiety. 

In some cases, anger issues can also result from unhealthy coping mechanisms, frustration, misplaced priorities, or learned behavior.

It is important to note that everyone experiences anger to some extent, which is a normal and healthy emotion. However, if your father’s anger is causing problems in his relationships or leading to harmful behavior, it may be helpful for him to seek professional help to address the issue.